Flights from Boston to Lisbon from USD 689

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Flights from Boston to Lisbon

Discover the cheapest day and month to travel

Jul 2026
FromUSD 719*
Viewed 1 day ago
Flight Type Round Trip|Economy
Aug 2026
FromUSD 715*
Viewed 16 hours ago
Flight Type Round Trip|Economy
Sep 2026
FromUSD 739*
Viewed 23 hours ago
Flight Type Round Trip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD 719
cmp-daily-histogram-bars-legend-max-price-aria-label USD 1.7K
Displaying fares for July-2026
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    • RangeUSD 719-USD 1,737

    *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 Boston to Lisbon

    USD
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    Best Flight Deals from Boston to Lisbon
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Lisbon (LIS)Round trip
    |
    Economy    		11/11/2026 - 18/11/2026

    From

    USD 689

    Viewed 1 day ago

    Boston (BOS)Lisbon (LIS)Round trip
    |
    Economy    		12/10/2026 - 19/11/2026

    From

    USD 689

    Viewed 17 hours ago

    Boston (BOS)Lisbon (LIS)Round trip
    |
    Economy    		10/11/2026 - 17/11/2026

    From

    USD 689

    Viewed 11 hours ago

    Boston (BOS)Lisbon (LIS)Round trip
    |
    Economy    		08/11/2026 - 17/11/2026

    From

    USD 689

    Viewed 14 hours ago

    Boston (BOS)Lisbon (LIS)Round trip
    |
    Economy    		12/10/2026 - 17/11/2026

    From

    USD 689

    Viewed 23 hours 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

    Boston (BOS)to

    Lisbon (LIS)
    19/08/2026 - 26/08/2026

    Round trip

    Business

    From
    USD 3,298
    Viewed 16 hours ago

    Boston (BOS)to

    Lisbon (LIS)
    11/08/2026 - 19/08/2026

    Round trip

    Business

    From
    USD 3,299
    Viewed 10 hours 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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