United flights from Porto to the United States from € 452*
Find United's best fares from Porto (OPO) to the United States
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Porto (OPO)to
New York/Newark (EWR)10/02/2025 - 17/02/2025from€ 455*Viewed: 21 hours agoRoundtrip|Economy
Porto (OPO)to
San Francisco (SFO)09/02/2025 - 23/02/2025from€ 630*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Los Angeles (LAX)07/02/2025 - 11/02/2025from€ 749*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Chicago (ORD)25/12/2024 - 08/01/2025from€ 661*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Washington, D.C. (IAD)15/12/2024 - 29/12/2024from€ 492*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Boston (BOS)25/12/2024 - 08/01/2025from€ 531*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Kalispell (FCA)07/02/2025 - 21/02/2025from€ 849*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Denver (DEN)25/12/2024 - 29/12/2024from€ 729*Viewed: 17 hours agoRoundtrip|Economy
Porto (OPO)to
Houston (IAH)25/12/2024 - 08/01/2025from€ 701*Viewed: 8 hours agoRoundtrip|Economy
Porto (OPO)to
Montrose (MTJ)18/01/2025 - 25/01/2025from€ 730*Viewed: 17 hours agoRoundtrip|Economy
Porto (OPO)to
Boise (BOI)15/02/2025 - 22/02/2025from€ 849*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Vail (EGE)19/02/2025 - 26/02/2025from€ 730*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Bozeman (BZN)05/12/2024 - 09/12/2024from€ 849*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Spokane (GEG)01/02/2025 - 15/02/2025from€ 850*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Gunnison (GUC)10/02/2025 - 24/02/2025from€ 731*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Billings (BIL)21/01/2025 - 28/01/2025from€ 850*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Great Falls (GTF)23/01/2025 - 30/01/2025from€ 850*Viewed: 18 hours agoRoundtrip|Economy
Porto (OPO)to
Jackson (JAC)25/01/2025 - 29/01/2025from€ 730*Viewed: 17 hours agoRoundtrip|Economy
Porto (OPO)to
Aspen (ASE)11/01/2025 - 18/01/2025from€ 730*Viewed: 17 hours agoRoundtrip|Economy
Porto (OPO)to
Eugene (EUG)10/02/2025 - 24/02/2025from€ 849*Viewed: 18 hours agoRoundtrip|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.
Business class flights from Porto (OPO) to the United States
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Porto (OPO)to
New York/Newark (EWR)
22/12/2024 - 29/12/2024
Roundtrip
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Business
from
€ 3.006*
Viewed: 13 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.