Cheapest return flights from San Francisco to Lisbon in May from 540€

AirHint found the following cheapest return flights from San Francisco (SFO) to Lisbon (LIS) in May 2026 (see full year).

Return flights

10 May - 24 May Air Canada
12 May - 26 May Air Canada
11 May - 25 May Air Canada
02 May - 23 May British Airways
02 May - 05 May Turkish Airlines
18 May - 13 Jun Lufthansa
09 May - 23 May Iberia
08 May - 30 May Finnair
21 May - 13 Jun Iberia
10 May - 21 May Iberia
12 May - 26 May TAP direct
20 May - 13 Jun Lufthansa
02 May - 23 May TAP direct
21 May - 13 Jun TAP direct

Also check the deals for one-way flights from San Francisco to Lisbon in May.

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