Flights from Denver to Lisbon from $ 749*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Denver (DEN) to Lisbon (LIS)

Mar 2026
From$ 818*
Viewed: 13 hours ago
RoundTrip|Economy
Apr 2026
From$ 792*
Viewed: 13 hours ago
RoundTrip|Economy
May 2026
From$ 961*
Viewed: 13 hours ago
RoundTrip|Economy
$ 818
$ 2.4K
Displaying fares for March-2026
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    • Range$ 818-$ 2,372

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Denver (DEN) to Lisbon (LIS) flights

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    More United deals on Denver (DEN) to Lisbon (LIS) flights
    From
    To
    Fare Type
    Dates
    Price
    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		11/02/26 - 11/19/26

    from

    $ 749

    Viewed: 9 hours ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		11/02/26 - 11/16/26

    from

    $ 799

    Viewed: 2 hours ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		11/24/26 - 12/01/26

    from

    $ 806

    Viewed: 5 minutes ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		11/25/26 - 12/02/26

    from

    $ 807

    Viewed: 6 hours ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		04/28/26 - 05/05/26

    from

    $ 792

    Viewed: 13 hours ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		04/27/26 - 05/21/26

    from

    $ 793

    Viewed: 1 day ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		03/31/26 - 04/14/26

    from

    $ 818

    Viewed: 13 hours ago

    Denver (DEN)Lisbon (LIS)Roundtrip
    |
    Economy    		03/30/26 - 04/29/26

    from

    $ 821

    Viewed: 1 day ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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