Flights from from Portugal to the United States from $ 674*

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Changed bag rules and optional services         Cruise Packages

Best prices for United flights from Portugal to United States

$
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  • Funchal (FNC)to

    Newark/New York (EWR)
    05/17/26 - 05/23/26
    from
    $ 863
    Viewed: 52 minutes ago
    Roundtrip
    Economy

    Lisbon (LIS)to

    Boston (BOS)
    05/19/26 - 05/22/26
    from
    $ 1,053
    Viewed: 3 hours ago
    Roundtrip
    Economy

    Lisbon (LIS)to

    Phoenix (PHX)
    05/04/26 - 05/11/26
    from
    $ 1,367
    Viewed: 15 hours ago
    Roundtrip
    Economy

    Porto (OPO)to

    Washington, D.C. (IAD)
    05/05/26 - 05/12/26
    from
    $ 996
    Viewed: 10 hours ago
    Roundtrip
    Economy

  • Lisbon (LIS)to

    Austin (AUS)
    05/02/26 - 05/07/26
    from
    $ 1,173
    Viewed: 4 hours ago
    Roundtrip
    Economy

    Porto (OPO)to

    Chicago (ORD)
    05/16/26 - 07/18/26
    from
    $ 1,049
    Viewed: 3 hours ago
    Roundtrip
    Economy

    Lisbon (LIS)to

    Las Vegas (LAS)
    05/27/26 - 06/09/26
    from
    $ 1,074
    Viewed: 3 hours ago
    Roundtrip
    Economy

*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.

Best business class fares from Portugal to the United States

$

Lisbon (LIS)to

Newark/New York (EWR)
08/14/26 - 01/27/27

Roundtrip

Business

from
$ 3,268
Viewed: 8 hours ago

Porto (OPO)to

Newark/New York (EWR)
07/30/26 - 08/16/26

Roundtrip

Business

from
$ 3,375
Viewed: 4 minutes ago

Lisbon (LIS)to

San Francisco (SFO)
06/26/26 - 06/28/26

Roundtrip

Business

from
$ 3,695
Viewed: 21 hours ago

Lisbon (LIS)to

Washington, D.C. (IAD)
08/14/26 - 03/03/27

Roundtrip

Business

from
$ 3,396
Viewed: 22 hours ago

Faro (FAO)to

Newark/New York (EWR)
08/14/26 - 03/03/27

Roundtrip

Business

from
$ 3,347
Viewed: 8 hours ago

Lisbon (LIS)to

Houston (IAH)
06/11/26 - 06/16/26

Roundtrip

Business

from
$ 5,009
Viewed: 2 hours ago

Lisbon (LIS)to

Chicago (ORD)
09/13/26 - 09/13/26

Roundtrip

Business

from
$ 4,244
Viewed: 21 hours ago

Funchal (FNC)to

Newark/New York (EWR)
07/22/26 - 08/20/26

Roundtrip

Business

from
$ 3,552
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.

Explore more United flights from from Portugal to the United States