Cheapest return flights from San Francisco to Lisbon in December from $458

AirHint found the following cheapest return flights from San Francisco (SFO) to Lisbon (LIS) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec Iberia
01 Dec - 09 Dec Iberia
02 Dec - 09 Dec Iberia
02 Dec - 10 Dec Iberia
09 Dec - 16 Dec British Airways
08 Dec - 16 Dec British Airways
09 Dec - 17 Dec British Airways
03 Dec - 10 Dec British Airways
03 Dec - 11 Dec British Airways
10 Dec - 17 Dec British Airways
04 Dec - 11 Jan Scandinavian Airlines
11 Dec - 11 Jan Scandinavian Airlines
29 Dec - 06 Jan British Airways
30 Dec - 06 Jan British Airways
30 Dec - 07 Jan British Airways
31 Dec - 07 Jan British Airways
31 Dec - 08 Jan British Airways
25 Dec - 06 Jan British Airways
12 Dec - 16 Jan American Airlines
14 Dec - 11 Jan Scandinavian Airlines

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

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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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