Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	J.P. Morgan Exchange-Traded Fund Trust
Prospectus Date	rr_ProspectusDate	Sep. 18, 2019
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan Core Plus Bond ETF JPMorgan Corporate Bond Research Enhanced ETF JPMorgan Global Bond Opportunities ETF JPMorgan Ultra-Short Income ETF (each, a “Fund” and collectively, the “Funds”) (each, a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process. For the JPMorgan Core Plus Bond ETF, the second to last paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, currency risk, legal provisions and the structure of the transactions. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors. For the JPMorgan Corporate Bond Research Enhanced ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and under “Corporate Bond Research Enhanced ETF” in the “More About the Funds – Additional Information About the Funds’ Investment Strategies” section are hereby deleted and replaced with the following: Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. As part of its security selection process, the adviser also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. For the JPMorgan Global Bond Opportunities ETF, the first paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: The Fund seeks to achieve its investment objective by investing across sectors in developed and emerging markets located around the world. The Fund is flexible and opportunistic. Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies, sectors, countries or currencies based on changing market conditions and its view of the best mix of investment opportunities. In buying and selling investments for the Fund, the adviser allocates the Fund’s exposure to strategies, sectors, countries and currencies based on the adviser’s analysis of individual investments and broader economic conditions in individual countries, regions and the world. This allows the adviser to take a conservative approach during uncertain periods and move into higher risk opportunities as market conditions improve, which may result in the Fund focusing in only a few markets and sectors. The Fund’s focus may change from time to time. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors. For the JPMorgan Ultra-Short Income ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: Investment Process: Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies and sectors based on changing market conditions and its view of the best mix of investment opportunities. The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and individual securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of their characteristics including income, interest rate risk, credit risk and the complex legal and technical structure of the transaction. As part of its security selection strategy, the adviser also evaluates whether environmental, social and governance factors could have material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan High Yield Research Enhanced ETF (formerly JPMorgan Disciplined High Yield ETF) (the “Fund”) (a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectus and Prospectus dated September 9, 2019, as supplemented Effective immediately, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and in the “More About the Fund – Additional Information About the Fund’s Investment Strategies” section are hereby deleted and replaced with the following to disclose how the Adviser integrates environmental, social and governance factors into the Fund’s investment process. Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and issuer and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into issuers and individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. The adviser will ordinarily overweight issuers, securities and sectors that it deems to be attractive and underweight or not invest in those issuers, securities and sectors that it believes are unattractive. The adviser may sell a security as its valuations or rankings change or if more attractive investments become available. As part of its credit analysis, the adviser generally also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUS AND PROSPECTUS FOR FUTURE REFERENCE
JPMorgan Core Plus Bond ETF
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan Core Plus Bond ETF (each, a “Fund” and collectively, the “Funds”) (each, a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process. For the JPMorgan Core Plus Bond ETF, the second to last paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, currency risk, legal provisions and the structure of the transactions. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE
JPMorgan Corporate Bond Research Enhanced ETF
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan Corporate Bond Research Enhanced ETF (each, a “Fund” and collectively, the “Funds”) (each, a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process. For the JPMorgan Corporate Bond Research Enhanced ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and under “Corporate Bond Research Enhanced ETF” in the “More About the Funds – Additional Information About the Funds’ Investment Strategies” section are hereby deleted and replaced with the following: Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. As part of its security selection process, the adviser also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE
JPMorgan Global Bond Opportunities ETF
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan Global Bond Opportunities ETF (each, a “Fund” and collectively, the “Funds”) (each, a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process. For the JPMorgan Global Bond Opportunities ETF, the first paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: The Fund seeks to achieve its investment objective by investing across sectors in developed and emerging markets located around the world. The Fund is flexible and opportunistic. Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies, sectors, countries or currencies based on changing market conditions and its view of the best mix of investment opportunities. In buying and selling investments for the Fund, the adviser allocates the Fund’s exposure to strategies, sectors, countries and currencies based on the adviser’s analysis of individual investments and broader economic conditions in individual countries, regions and the world. This allows the adviser to take a conservative approach during uncertain periods and move into higher risk opportunities as market conditions improve, which may result in the Fund focusing in only a few markets and sectors. The Fund’s focus may change from time to time. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE
JPMorgan Ultra-Short Income ETF
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan Ultra-Short Income ETF (each, a “Fund” and collectively, the “Funds”) (each, a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process. For the JPMorgan Ultra-Short Income ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following: Investment Process: Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies and sectors based on changing market conditions and its view of the best mix of investment opportunities. The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and individual securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of their characteristics including income, interest rate risk, credit risk and the complex legal and technical structure of the transaction. As part of its security selection strategy, the adviser also evaluates whether environmental, social and governance factors could have material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE
JPMorgan High Yield Research Enhanced ETF
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	J.P. MORGAN EXCHANGE-TRADED FUNDS JPMorgan High Yield Research Enhanced ETF (formerly JPMorgan Disciplined High Yield ETF) (the “Fund”) (a series of J.P. Morgan Exchange-Traded Fund Trust) Supplement dated September 18, 2019 to the Summary Prospectus and Prospectus dated September 9, 2019, as supplemented Effective immediately, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and in the “More About the Fund – Additional Information About the Fund’s Investment Strategies” section are hereby deleted and replaced with the following to disclose how the Adviser integrates environmental, social and governance factors into the Fund’s investment process. Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and issuer and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into issuers and individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. The adviser will ordinarily overweight issuers, securities and sectors that it deems to be attractive and underweight or not invest in those issuers, securities and sectors that it believes are unattractive. The adviser may sell a security as its valuations or rankings change or if more attractive investments become available. As part of its credit analysis, the adviser generally also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE SUMMARY PROSPECTUS AND PROSPECTUS FOR FUTURE REFERENCE

dei_EntityRegistrantName

J.P. Morgan Exchange-Traded Fund Trust

rr_SupplementToProspectusTextBlock

J.P. MORGAN EXCHANGE-TRADED FUNDS

JPMorgan Core Plus Bond ETF

JPMorgan Corporate Bond Research Enhanced ETF

JPMorgan Global Bond Opportunities ETF

JPMorgan Ultra-Short Income ETF

(each, a “Fund” and collectively, the “Funds”)

(each, a series of J.P. Morgan Exchange-Traded Fund Trust)

Supplement dated September 18, 2019

to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented

Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process.

For the JPMorgan Core Plus Bond ETF, the second to last paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following:

The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, currency risk, legal provisions and the structure of the transactions. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors.

For the JPMorgan Corporate Bond Research Enhanced ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and under “Corporate Bond Research Enhanced ETF” in the “More About the Funds – Additional Information About the Funds’ Investment Strategies” section are hereby deleted and replaced with the following:

Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. As part of its security selection process, the adviser also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors.

For the JPMorgan Global Bond Opportunities ETF, the first paragraph under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following:

The Fund seeks to achieve its investment objective by investing across sectors in developed and emerging markets located around the world. The Fund is flexible and opportunistic. Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies, sectors, countries or currencies based on changing market conditions and its view of the best mix of investment opportunities. In buying and selling investments for the Fund, the adviser allocates the Fund’s exposure to strategies, sectors, countries and currencies based on the adviser’s analysis of individual investments and broader economic conditions in individual countries, regions and the world. This allows the adviser to take a conservative approach during uncertain periods and move into higher risk opportunities as market conditions improve, which may result in the Fund focusing in only a few markets and sectors. The Fund’s focus may change from time to time. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors.

For the JPMorgan Ultra-Short Income ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following:

Investment Process: Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies and sectors based on changing market conditions and its view of the best mix of investment opportunities. The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and individual securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of their characteristics including income, interest rate risk, credit risk and the complex legal and technical structure of the transaction. As part of its security selection strategy, the adviser also evaluates whether environmental, social and governance factors could have material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE

J.P. MORGAN EXCHANGE-TRADED FUNDS

JPMorgan High Yield Research Enhanced ETF

(formerly JPMorgan Disciplined High Yield ETF)

(the “Fund”)

(a series of J.P. Morgan Exchange-Traded Fund Trust)

Supplement dated September 18, 2019

to the Summary Prospectus and Prospectus dated September 9, 2019, as supplemented

Effective immediately, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and in the “More About the Fund – Additional Information About the Fund’s Investment Strategies” section are hereby deleted and replaced with the following to disclose how the Adviser integrates environmental, social and governance factors into the Fund’s investment process.

Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and issuer and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into issuers and individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value.

The adviser will ordinarily overweight issuers, securities and sectors that it deems to be attractive and underweight or not invest in those issuers, securities and sectors that it believes are unattractive. The adviser may sell a security as its valuations or rankings change or if more attractive investments become available. As part of its credit analysis, the adviser generally also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

SUMMARY PROSPECTUS AND PROSPECTUS FOR FUTURE REFERENCE

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

J.P. MORGAN EXCHANGE-TRADED FUNDS

JPMorgan Corporate Bond Research Enhanced ETF

(each, a “Fund” and collectively, the “Funds”)

(each, a series of J.P. Morgan Exchange-Traded Fund Trust)

Supplement dated September 18, 2019

to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented

Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process.

For the JPMorgan Corporate Bond Research Enhanced ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section and under “Corporate Bond Research Enhanced ETF” in the “More About the Funds – Additional Information About the Funds’ Investment Strategies” section are hereby deleted and replaced with the following:

Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. As part of its security selection process, the adviser also evaluates whether environmental, social and governance factors could have a material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

J.P. MORGAN EXCHANGE-TRADED FUNDS

JPMorgan Ultra-Short Income ETF

(each, a “Fund” and collectively, the “Funds”)

(each, a series of J.P. Morgan Exchange-Traded Fund Trust)

Supplement dated September 18, 2019

to the Summary Prospectuses and Prospectus dated July 1, 2019, as supplemented

Effective immediately, the disclosures for each Fund are being revised to disclose how the Adviser integrates environmental, social and governance factors into each Fund’s investment process.

For the JPMorgan Ultra-Short Income ETF, the Investment Process under “What are the Fund’s main investment strategies?” in the Risk/Return Summary section is hereby deleted and replaced with the following:

Investment Process: Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies and sectors based on changing market conditions and its view of the best mix of investment opportunities. The adviser allocates the Fund’s assets among a range of sectors based on strategic positioning and other tactical considerations. In buying and selling investments for the Fund, the adviser looks for market sectors and individual securities that it believes will perform well over time. The adviser selects individual securities after performing a risk/reward analysis that includes an evaluation of their characteristics including income, interest rate risk, credit risk and the complex legal and technical structure of the transaction. As part of its security selection strategy, the adviser also evaluates whether environmental, social and governance factors could have material negative or positive impact on the cash flows or risk profiles of many companies in the universe in which the Fund may invest. These determinations may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

SUMMARY PROSPECTUSES AND PROSPECTUS FOR FUTURE REFERENCE

Risk/Return:

rr_RiskReturnAbstract