Cheapest return flights from San Francisco to Lisbon in December from $490

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

Return flights

10 Dec - 15 Dec Air France
14 Dec - 25 Dec Delta
13 Dec - 25 Dec American Airlines
28 Dec - 12 Jan British Airways
10 Dec - 14 Dec British Airways
11 Dec - 18 Dec United
14 Dec - 26 Dec British Airways
28 Dec - 11 Jan British Airways
10 Dec - 20 Dec Air France
12 Dec - 14 Dec United
14 Dec - 21 Dec Lufthansa
11 Dec - 21 Dec British Airways
27 Dec - 11 Jan Brussels Airlines
25 Dec - 11 Jan British Airways
27 Dec - 09 Jan British Airways
26 Dec - 11 Jan British Airways
26 Dec - 09 Jan British Airways
26 Dec - 08 Jan British Airways
31 Dec - 07 Jan Air Canada
24 Dec - 08 Jan British Airways

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

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