Cheapest return flights from San Francisco to London in December from $477

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

Return flights

01 Dec - 09 Dec TAP
01 Dec - 11 Dec TAP
04 Dec - 08 Dec Scandinavian Airlines
29 Dec - 24 Jan TAP
06 Dec - 11 Dec Scandinavian Airlines
29 Dec - 09 Jan Air Canada
10 Dec - 08 Jan TAP
02 Dec - 09 Dec Air Canada
15 Dec - 26 Dec TAP
01 Dec - 08 Dec Scandinavian Airlines
04 Dec - 11 Dec Scandinavian Airlines
01 Dec - 09 Dec British Airways direct
02 Dec - 09 Dec British Airways direct
11 Dec - 08 Jan Air Canada
10 Dec - 08 Jan British Airways direct
26 Dec - 20 Jan Scandinavian Airlines
15 Dec - 06 Jan Air Canada
16 Dec - 06 Jan Air Canada
27 Dec - 11 Jan Scandinavian Airlines
29 Dec - 24 Jan British Airways direct

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

Skyscanner

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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