Travel with Air Canada from Washington, D.C. to London, UK (WAS - LHR)

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*Fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

Flights between Washington, D.C. and London, UK - our lowest fares in cash

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    • Book flights from Washington, D.C. (WAS) to London, UK (LHR) | Air Canada

    Flights between Washington, D.C. and London, UK - our lowest fares in points

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    Flights between Washington, D.C. and London, UK - our lowest fares in points
    From
    To
    Fare Type
    Departure
    Price
    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Jul 05, 2026 - Jul 10, 2026

    From

    67,800 pts
    + CAD 168

    Viewed: 5 hours ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Jul 06, 2026 - Jul 10, 2026

    From

    67,800 pts
    + CAD 182

    Viewed: 5 hours ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 29, 2026 - Oct 06, 2026

    From

    67,400 pts
    + CAD 90

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 27, 2026 - Oct 06, 2026

    From

    67,400 pts
    + CAD 90

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 30, 2026 - Oct 06, 2026

    From

    67,400 pts
    + CAD 104

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 28, 2026 - Oct 06, 2026

    From

    67,400 pts
    + CAD 131

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 21, 2026 - Oct 09, 2026

    From

    134,800 pts
    + CAD 343

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 20, 2026 - Oct 09, 2026

    From

    134,800 pts
    + CAD 180

    Viewed: 1 day ago

    Washington, D.C. (DCA)London, UK (LHR)Round-trip
    /
    Economy    		Sep 01, 2026 - Sep 08, 2026

    From

    67,400 pts
    + CAD 90

    Viewed: 15 hours ago

    Washington, D.C. (DCA)London, UK (LHR)Round-trip
    /
    Economy    		Jul 06, 2026 - Jul 10, 2026

    From

    67,800 pts
    + CAD 81

    Viewed: 5 hours ago

    Washington, D.C. (DCA)London, UK (LHR)Round-trip
    /
    Economy    		May 02, 2026 - May 10, 2026

    From

    73,600 pts
    + CAD 429

    Viewed: 1 day ago

    *Points displayed do not reflect preferred pricing for Aeroplan Elite Status Members and/or Aeroplan Credit Cardholders. Prices have been collected within the past 48 hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

    Explore all routes from Washington, D.C. to London, UK