Flights from from Portugal to the United States from $ 485*
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1 Passenger, Economy
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today
today
Best prices for United flights from Portugal to United States
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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 Portugal to the United States
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Lisbon (LIS)to
Newark/New York (EWR)
03/02/26 - 03/10/26
Roundtrip
Business
from
$Â 2,506
Viewed: 15 hours ago
Porto (OPO)to
Newark/New York (EWR)
12/18/25 - 01/05/26
Roundtrip
Business
from
$Â 2,543
Viewed: 9 hours ago
Lisbon (LIS)to
Denver (DEN)
12/21/25 - 01/02/26
Roundtrip
Business
from
$Â 4,125
Viewed: 4 hours ago
Lisbon (LIS)to
Miami (MIA)
12/22/25 - 01/02/26
Roundtrip
Business
from
$Â 3,893
Viewed: 11 hours ago
Lisbon (LIS)to
Tampa (TPA)
05/13/26 - 05/16/26
Roundtrip
Business
from
$Â 4,720
Viewed: 12 hours ago
Porto (OPO)to
Washington, D.C. (IAD)
01/28/26 - 02/05/26
Roundtrip
Business
from
$Â 2,644
Viewed: 14 hours ago
Lisbon (LIS)to
Saint Louis (STL)
06/03/26 - 06/20/26
Roundtrip
Business
from
$Â 3,691
Viewed: 9 hours ago
Ponta Delgada (PDL)to
Boston (BOS)
02/24/26 - 03/10/26
Roundtrip
Business
from
$Â 3,492
Viewed: 12 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.