Cheapest return flights from San Francisco to Lisbon in May from 424€

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

Return flights

12 May - 19 May Iberia
01 May - 08 May British Airways
11 May - 18 May British Airways
13 May - 20 May British Airways
10 May - 17 May American Airlines
14 May - 21 May British Airways
17 May - 24 May Delta
15 May - 22 May British Airways
01 May - 10 May British Airways
19 May - 26 May British Airways
26 May - 02 Jun Scandinavian Airlines
15 May - 02 Jun British Airways
26 May - 09 Jun Scandinavian Airlines
27 May - 03 Jun Scandinavian Airlines
15 May - 01 Jun British Airways
31 May - 07 Jun Air Canada
13 May - 03 Jun Lufthansa
29 May - 05 Jun WestJet
30 May - 06 Jun Air Canada
28 May - 04 Jun Air Canada

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

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