Flights from Porto to the United States from $ 536*
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1 Passenger, Economy
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today
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Find United's best fares from Porto to the United States
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Porto (OPO)to
Newark/New York (EWR)01/28/26 - 02/04/26from$Â 551Viewed: 13 hours agoRoundtripEconomy
Porto (OPO)to
San Francisco (SFO)02/01/26 - 02/05/26from$Â 834Viewed: 2 hours agoRoundtripEconomy
Porto (OPO)to
Washington, D.C. (IAD)01/28/26 - 02/05/26from$Â 536Viewed: 1 day agoRoundtripEconomy
*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.
Business class flights from Porto to the United States
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flight_land
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Porto (OPO)to
Newark/New York (EWR)
01/28/26 - 02/04/26
Roundtrip
Business
from
$Â 2,540
Viewed: 13 hours ago
Porto (OPO)to
San Francisco (SFO)
02/01/26 - 02/05/26
Roundtrip
Business
from
$Â 5,348
Viewed: 2 hours ago
Porto (OPO)to
Washington, D.C. (IAD)
01/28/26 - 02/05/26
Roundtrip
Business
from
$Â 2,644
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.