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

Return flights

05 Jan - 13 Jan	Iberia
07 Jan - 15 Jan	British Airways
07 Jan - 14 Jan	Iberia
12 Jan - 20 Jan	Iberia
13 Jan - 20 Jan	Iberia
13 Jan - 21 Jan	Iberia
14 Jan - 22 Jan	British Airways
21 Jan - 29 Jan	British Airways
20 Jan - 27 Jan	British Airways
26 Jan - 03 Feb	British Airways
27 Jan - 03 Feb	British Airways
14 Jan - 21 Jan	British Airways
28 Jan - 04 Feb	Finnair
24 Jan - 01 Feb	Scandinavian Airlines
25 Jan - 01 Feb	Scandinavian Airlines
29 Jan - 06 Feb	Scandinavian Airlines
31 Jan - 08 Feb	Scandinavian Airlines
25 Jan - 02 Feb	Iberia
26 Jan - 02 Feb	Iberia
27 Jan - 04 Feb	Iberia

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

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 January from $458

Return flights