Cheapest return flights from San Francisco to Porto in April from $432

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

Return flights

30 Apr - 05 May TAP
14 Apr - 21 Apr TAP
18 Apr - 24 Apr TAP
09 Apr - 16 Apr TAP
11 Apr - 18 Apr TAP
16 Apr - 23 Apr TAP
17 Apr - 24 Apr TAP
18 Apr - 25 Apr TAP
21 Apr - 28 Apr TAP
23 Apr - 30 Apr TAP
24 Apr - 01 May TAP
25 Apr - 02 May TAP
28 Apr - 05 May TAP
30 Apr - 07 May TAP
19 Apr - 26 Apr Iberia
27 Apr - 04 May Aer Lingus
26 Apr - 03 May LEVEL

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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