Flights from United States to to Portugal from $ 674*
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1 Passenger, Economy
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today
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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)
07/15/26 - 08/20/26
Roundtrip
Business
from
$ 5,006
Viewed: 14 hours ago
Newark/New York (EWR)to
Porto (OPO)
07/22/26 - 08/04/26
Roundtrip
Business
from
$ 5,065
Viewed: 7 hours ago
San Francisco (SFO)to
Lisbon (LIS)
06/22/26 - 07/02/26
Roundtrip
Business
from
$ 4,938
Viewed: 1 hour ago
Washington, D.C. (IAD)to
Lisbon (LIS)
08/23/26 - 08/30/26
Roundtrip
Business
from
$ 6,049
Viewed: 8 hours ago
Chicago (ORD)to
Lisbon (LIS)
03/05/27 - 03/20/27
Roundtrip
Business
from
$ 5,139
Viewed: 8 hours ago
Newark/New York (EWR)to
Ponta Delgada (PDL)
08/11/26 - 08/18/26
Roundtrip
Business
from
$ 4,650
Viewed: 3 minutes ago
Newark/New York (EWR)to
Faro (FAO)
07/29/26 - 08/04/26
Roundtrip
Business
from
$ 6,032
Viewed: 1 hour ago
Denver (DEN)to
Lisbon (LIS)
09/09/26 - 09/23/26
Roundtrip
Business
from
$ 6,244
Viewed: 5 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.