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

Return flights

02 Mar - 09 Mar	Finnair
02 Mar - 10 Mar	Finnair
03 Mar - 10 Mar	Finnair
10 Mar - 17 Mar	Finnair
10 Mar - 18 Mar	Finnair
11 Mar - 18 Mar	Iberia
03 Mar - 11 Mar	British Airways
04 Mar - 11 Mar	British Airways
04 Mar - 12 Mar	British Airways
23 Mar - 31 Mar	Iberia
26 Mar - 04 Apr	Scandinavian Airlines
27 Mar - 04 Apr	British Airways
27 Mar - 04 Apr	TAP	direct
31 Mar - 02 Apr	Iberia
31 Mar - 02 Apr	TAP	direct

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

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from San Francisco to Lisbon in March from $457

Return flights