Cheapest return flights from San Francisco to Porto in March from $433

AirHint found the following cheapest return flights from San Francisco (SFO) to Porto (OPO) in March 2026 (see full year).

Return flights

13 Mar - 20 Mar TAP
02 Mar - 09 Mar TAP
02 Mar - 15 Mar TAP
13 Mar - 22 Mar TAP
02 Mar - 14 Mar TAP
06 Mar - 13 Mar TAP
14 Mar - 21 Mar TAP
16 Mar - 23 Mar TAP
19 Mar - 30 Mar Lufthansa
17 Mar - 29 Mar Scandinavian Airlines
27 Mar - 03 Apr TAP

Also check the deals for one-way flights from San Francisco to Porto in March.

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