Washington, D.C. to London Flights on Aer Lingus from $843.18*

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Book Washington, D.C. to London flight deals*

Jun 2026
From$1,585.56*
Seen: 7 hrs ago
Flight Type Round Trip/Economy
Jul 2026
From$1,077.08*
Seen: 5 hrs ago
Flight Type Round Trip/Economy
Aug 2026
From$894.58*
Seen: 20 hrs ago
Flight Type Round Trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.6K
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    • Range$1,585.56-$1,679.64

    * Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

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    Book Washington, D.C. to London flight deals*

    Book Washington, D.C. to London flight deals*
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)London (LHR)Roundtrip*
    /
    Economy    		25 Jan 2027 - 31 Jan 2027

    From

    $891.78

    Seen: 5 hrs ago

    *Roundtrip Restrictions apply.
    Each way fare as part of a return trip including taxes and charges. One way fare including taxes and charges.

    Testing Each way

    Testing Each way
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)London (LHR)Roundtrip*
    /
    Economy    		13 Oct 2026 - 27 Oct 2026

    From

    $843.18

    Seen: 9 hrs ago

    Washington, D.C. (IAD)London (LON)Roundtrip*
    /
    Economy    		3 Oct 2026 - 6 Oct 2026

    From

    $894.58

    Seen: 12 hrs ago

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