Flights from the United States to to Portugal from $ 688*
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1 Passenger, Economy
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today
today
Best prices for United flights from United States to Portugal
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*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 United States to to Portugal
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Newark/New York (EWR)to
Lisbon (LIS)
07/22/26 - 08/04/26
Roundtrip
Business
from
$ 4,351
Viewed: 4 hours ago
Newark/New York (EWR)to
Porto (OPO)
07/28/26 - 08/18/26
Roundtrip
Business
from
$ 4,243
Viewed: 14 hours ago
San Francisco (SFO)to
Lisbon (LIS)
06/21/26 - 06/30/26
Roundtrip
Business
from
$ 4,393
Viewed: 1 day ago
Washington, D.C. (IAD)to
Lisbon (LIS)
07/29/26 - 08/06/26
Roundtrip
Business
from
$ 4,505
Viewed: 1 day ago
Chicago (ORD)to
Lisbon (LIS)
02/17/27 - 04/14/27
Roundtrip
Business
from
$ 4,637
Viewed: 18 hours ago
Newark/New York (EWR)to
Faro (FAO)
08/11/26 - 08/27/26
Roundtrip
Business
from
$ 5,504
Viewed: 4 hours ago
Denver (DEN)to
Lisbon (LIS)
07/04/26 - 07/15/26
Roundtrip
Business
from
$ 5,469
Viewed: 22 hours ago
Newark/New York (EWR)to
Funchal (FNC)
02/10/27 - 02/16/27
Roundtrip
Business
from
$ 6,854
Viewed: 22 hours 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.