Cheapest return flights from San Francisco to Madrid in December from $438

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

Return flights

08 Dec - 16 Dec American Airlines
03 Dec - 12 Dec British Airways
08 Dec - 24 Dec Lufthansa
06 Dec - 23 Dec Lufthansa
04 Dec - 11 Dec Lufthansa
05 Dec - 10 Dec Air Canada
10 Dec - 16 Dec KLM
06 Dec - 22 Dec SWISS
02 Dec - 12 Dec Brussels Airlines
31 Dec - 11 Jan TAP
06 Dec - 10 Dec ITA Airways
24 Dec - 13 Jan Air Canada
29 Dec - 09 Jan British Airways
25 Dec - 11 Jan Scandinavian Airlines
06 Dec - 10 Jan TAP
04 Dec - 10 Jan Frontier Airlines
10 Dec - 09 Jan British Airways
15 Dec - 16 Jan Brussels Airlines
29 Dec - 10 Jan Frontier Airlines
10 Dec - 10 Jan Frontier Airlines

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

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