Flights from Washington, D.C. to Lisbon from USD 639

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Flights from Washington, D.C. to Lisbon

Discover the cheapest day and month to travel

Jul 2026
FromUSD 1,072*
Viewed 1 day ago
Flight Type Round Trip|Economy
Aug 2026
FromUSD 644*
Viewed 1 hour ago
Flight Type Round Trip|Economy
Sep 2026
FromUSD 648*
Viewed 2 hours ago
Flight Type Round Trip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD 648
cmp-daily-histogram-bars-legend-max-price-aria-label USD 1.7K
Displaying fares for July-2026
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    • RangeUSD 648-USD 1,685

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

    Best Flight Deals from Washington, D.C. to Lisbon

    USD
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    Best Flight Deals from Washington, D.C. to Lisbon
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)Lisbon (LIS)Round trip
    |
    Economy    		04/12/2026 - 19/12/2026

    From

    USD 639

    Viewed 21 hours ago

    Washington, D.C. (IAD)Lisbon (LIS)Round trip
    |
    Economy    		11/02/2027 - 16/02/2027

    From

    USD 644

    Viewed 15 hours ago

    Washington, D.C. (IAD)Lisbon (LIS)Round trip
    |
    Economy    		11/12/2026 - 20/12/2026

    From

    USD 648

    Viewed 1 day ago

    Washington, D.C. (IAD)Lisbon (LIS)Round trip
    |
    Economy    		12/10/2026 - 20/10/2026

    From

    USD 648

    Viewed 1 day ago

    Washington, D.C. (IAD)Lisbon (LIS)Round trip
    |
    Economy    		26/08/2026 - 04/09/2026

    From

    USD 644

    Viewed 1 hour ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

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    Business Flights Deals

    USD

    Washington, D.C. (IAD)to

    Lisbon (LIS)
    28/09/2026 - 04/10/2026

    Round trip

    Business

    From
    USD 4,880
    Viewed 1 day ago

    Washington, D.C. (IAD)to

    Lisbon (LIS)
    28/09/2026 - 08/10/2026

    Round trip

    Business

    From
    USD 4,880
    Viewed 1 day ago
    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

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