Flights from Porto (OPO) starting at € 557*
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1 Passenger, Economy
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Fly from Porto and get United's best fares
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Porto (OPO)to
Newark/New York (EWR)03/06/2026 - 07/06/2026from€ 557Viewed: 6 hours agoRoundtripEconomy
Porto (OPO)to
Denver (DEN)09/06/2026 - 23/06/2026from€ 844Viewed: 3 hours agoRoundtripEconomy
Porto (OPO)to
Washington, D.C. (IAD)27/05/2026 - 31/05/2026from€ 594Viewed: 20 hours agoRoundtripEconomy
Porto (OPO)to
Houston (IAH)28/05/2026 - 01/06/2026from€ 814Viewed: 21 hours agoRoundtripEconomy
Porto (OPO)to
San Francisco (SFO)27/05/2026 - 31/05/2026from€ 726Viewed: 21 hours agoRoundtripEconomy
Porto (OPO)to
Chicago (ORD)27/05/2026 - 31/05/2026from€ 774Viewed: 21 hours agoRoundtripEconomy
Porto (OPO)to
Boston (BOS)05/06/2026 - 09/06/2026from€ 644Viewed: 20 hours agoRoundtripEconomy
Porto (OPO)to
Los Angeles (LAX)03/06/2026 - 07/06/2026from€ 844Viewed: 21 hours agoRoundtripEconomy
Porto (OPO)to
Boise (BOI)28/05/2026 - 04/06/2026from€ 963Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Seattle (SEA)27/05/2026 - 31/05/2026from€ 848Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Vail (EGE)27/05/2026 - 31/05/2026from€ 828Viewed: 3 hours agoRoundtripEconomy
Porto (OPO)to
Eugene (EUG)28/05/2026 - 01/06/2026from€ 948Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Billings (BIL)28/05/2026 - 01/06/2026from€ 948Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Kalispell (FCA)04/06/2026 - 08/06/2026from€ 948Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Steamboat Springs (HDN)27/05/2026 - 31/05/2026from€ 828Viewed: 3 hours agoRoundtripEconomy
Porto (OPO)to
Helena (HLN)28/05/2026 - 04/06/2026from€ 948Viewed: 4 hours agoRoundtripEconomyPorto (OPO)to
Newark/New York (LGA)10/06/2026 - 17/06/2026from€ 564Viewed: 21 hours agoRoundtripEconomy
Porto (OPO)to
Sun Valley (SUN)01/06/2026 - 08/06/2026from€ 948Viewed: 4 hours agoRoundtripEconomy
Porto (OPO)to
Aspen (ASE)28/05/2026 - 01/06/2026from€ 828Viewed: 3 hours agoRoundtripEconomy
Porto (OPO)to
Bozeman (BZN)28/05/2026 - 01/06/2026from€ 948Viewed: 4 hours 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.
United popular flights from Porto (OPO)
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Porto (OPO) | Newark/New York (EWR) | Roundtrip | Economy | 03/06/2026 - 07/06/2026 | from € 557 Viewed: 6 hours ago |
| Porto (OPO) | Denver (DEN) | Roundtrip | Economy | 09/06/2026 - 23/06/2026 | from € 844 Viewed: 3 hours ago |
| Porto (OPO) | Washington, D.C. (IAD) | Roundtrip | Economy | 27/05/2026 - 31/05/2026 | from € 594 Viewed: 20 hours ago |
| Porto (OPO) | Houston (IAH) | Roundtrip | Economy | 28/05/2026 - 01/06/2026 | from € 814 Viewed: 21 hours ago |
| Porto (OPO) | San Francisco (SFO) | Roundtrip | Economy | 27/05/2026 - 31/05/2026 | from € 726 Viewed: 21 hours ago |
| Porto (OPO) | Chicago (ORD) | Roundtrip | Economy | 27/05/2026 - 31/05/2026 | from € 774 Viewed: 21 hours ago |
| Porto (OPO) | Boston (BOS) | Roundtrip | Economy | 05/06/2026 - 09/06/2026 | from € 644 Viewed: 20 hours ago |
| Porto (OPO) | Los Angeles (LAX) | Roundtrip | Economy | 03/06/2026 - 07/06/2026 | from € 844 Viewed: 21 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.