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

Return flights

03 Apr - 10 Apr	Scandinavian Airlines
01 Apr - 08 Apr	British Airways
02 Apr - 09 Apr	British Airways
11 Apr - 17 Apr	British Airways
29 Apr - 23 May	British Airways
07 Apr - 14 Apr	TAP	direct
02 Apr - 09 Apr	TAP	direct
17 Apr - 24 Apr	TAP	direct
03 Apr - 10 Apr	TAP	direct
11 Apr - 17 Apr	TAP	direct

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

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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Cheapest return flights from San Francisco to Lisbon in April from 516€

Return flights