<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2017-11-15</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001707092</issuerCik>
        <issuerName>Delphi Technologies PLC</issuerName>
        <issuerTradingSymbol>DLPH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001599790</rptOwnerCik>
            <rptOwnerName>Butterworth Liam</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O DELPHI TECHNOLOGIES PLC</rptOwnerStreet1>
            <rptOwnerStreet2>COURTENEY ROAD, HOATH WAY</rptOwnerStreet2>
            <rptOwnerCity>GILLINGHAM, KENT</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>ME8 0RU</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>President

Exhibit List: Exhibit 24.1  - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ James D. Harrington, Attorney-in-fact for Liam Butterworth</signatureName>
        <signatureDate>2017-11-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
