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

    pts
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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    		Aug 27, 2026 - Sep 01, 2026

    From

    74,000 pts
    + CAD 421

    Viewed: 14 hours ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Aug 05, 2026 - Aug 12, 2026

    From

    68,200 pts
    + CAD 407

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Aug 27, 2026 - Aug 31, 2026

    From

    80,000 pts
    + CAD 158

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Sep 30, 2026 - Oct 05, 2026

    From

    147,200 pts
    + CAD 735

    Viewed: 1 day ago

    Washington, D.C. (IAD)London, UK (LHR)Round-trip
    /
    Economy    		Oct 01, 2026 - Oct 05, 2026

    From

    160,000 pts
    + CAD 791

    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