Cheapest return flights from San Francisco to London in December from 401€

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

Return flights

09 Dec - 16 Dec Air Canada
02 Dec - 16 Dec Air Canada
04 Dec - 07 Dec Scandinavian Airlines
01 Dec - 09 Dec Delta
02 Dec - 09 Dec Delta
03 Dec - 10 Dec British Airways direct
02 Dec - 16 Dec British Airways direct
08 Dec - 15 Dec British Airways direct
05 Dec - 19 Dec TAP
01 Dec - 15 Dec British Airways direct
30 Dec - 30 Jan Air Canada
26 Dec - 09 Jan Scandinavian Airlines
23 Dec - 09 Jan Air Canada
12 Dec - 12 Jan SWISS
25 Dec - 10 Jan United
16 Dec - 06 Jan British Airways
15 Dec - 01 Jan Delta
14 Dec - 01 Jan Delta
16 Dec - 06 Jan United direct
14 Dec - 04 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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