- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	skyw_AgreementsWithOtherAirlinesLineItems
Namespace Prefix:	skyw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of notice for termination of agreement.

+ References

No definition available.

+ Details

Name:	skyw_NoticePeriodForTerminationOfAgreement
Namespace Prefix:	skyw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of additional aircrafts into service as per agreement.

+ References

No definition available.

+ Details

Name:	skyw_NumberOfAdditionalAircraftsIntoService
Namespace Prefix:	skyw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the total number of aircrafts into service as per agreement.

+ References

No definition available.

+ Details

Name:	skyw_NumberOfTotalAircraftsIntoService
Namespace Prefix:	skyw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of agreement entered into by the entity.

+ References

No definition available.

+ Details

Name:	skyw_TermsOfAgreement
Namespace Prefix:	skyw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of aircraft operated by the carrier.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfAircraftOperated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_DeltaConnectionAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=skyw_SkyWestAirlinesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=skyw_ExpressJetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=us-gaap_CRJ200Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=us-gaap_CRJ700Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=us-gaap_CRJ900Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_ProrateAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_UnitedExpressAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=skyw_E175Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=skyw_ERJ145Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AircraftTypeAxis=skyw_Erj135Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_UnitedExpressProrateAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_AlaskaCapacityPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_USAirwaysExpressAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_USAirwaysExpressProrateAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_AmericanCapacityPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=skyw_AmericanProrateAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Passenger and Ground Handling Revenue (Details) - Jun. 30, 2015	aircraft	item
Delta Connection Agreements \| Sky West Airlines Inc
Agreements with other airlines
Term of agreement		4 years 3 months 18 days
Delta Connection Agreements \| ExpressJet
Agreements with other airlines
Term of agreement		3 years 8 months 12 days
Delta Connection Agreements \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		48
Delta Connection Agreements \| CRJ 200 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		59
Delta Connection Agreements \| CRJ 700 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		19
Delta Connection Agreements \| CRJ 700 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		41
Delta Connection Agreements \| CRJ 900 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		32
Delta Connection Agreements \| CRJ 900 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		28
Prorate Agreement \| Sky West Airlines Inc
Agreements with other airlines
Notice period for termination of agreement		30 days
Prorate Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		13
United Express Agreements \| Sky West Airlines Inc
Agreements with other airlines
Term of agreement		3 years 9 months 18 days
United Express Agreements \| ExpressJet
Agreements with other airlines
Term of agreement		1 year 6 months
United Express Agreements \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		49
United Express Agreements \| CRJ 700 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		70
United Express Agreements \| E 175 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		35
United Express Agreements \| ERJ 145 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		180
United Express Agreements \| ERJ135 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		5
United Express Prorate Agreement \| Sky West Airlines Inc
Agreements with other airlines
Notice period for termination of agreement		120 days
United Express Prorate Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		23
Alaska Capacity Purchase Agreement \| CRJ 700 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		9
Alaska Capacity Purchase Agreement \| E 175
Agreements with other airlines
Number of additional aircrafts into service \| aircraft	8
Number of total aircrafts into service \| aircraft	15
Alaska Capacity Purchase Agreement \| E 175 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		3
US Airways Express Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		10
US Airways Express Agreement \| CRJ 900 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		4
US Airways Express Prorate Agreement \| Sky West Airlines Inc
Agreements with other airlines
Notice period for termination of agreement		120 days
US Airways Express Prorate Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		1
American Capacity Purchase Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		12
American Capacity Purchase Agreement \| CRJ 200 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		11
American Capacity Purchase Agreement \| ERJ 145 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		16
American Prorate Agreement \| Sky West Airlines Inc
Agreements with other airlines
Notice period for termination of agreement		120 days
American Prorate Agreement \| ExpressJet
Agreements with other airlines
Term of agreement		120 days
American Prorate Agreement \| CRJ 200 \| Sky West Airlines Inc
Agreements with other airlines
Number of aircraft under contract		5
American Prorate Agreement \| CRJ 200 \| ExpressJet
Agreements with other airlines
Number of aircraft under contract		3