United flights from Porto to San Francisco from $ 766* or from $/mo

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Porto (OPO) to San Francisco (SFO)

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Mar 2025
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Apr 2025
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May 2025
From$ 766*
Viewed: 7 hours ago
RoundTrip|Economy
€ 652
Displaying fares for March-2025
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Range€ 652-€ 803

*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.

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