Cheapest return flights from San Francisco to London in December from 387€

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

Return flights

01 Dec - 11 Dec TAP
02 Dec - 16 Dec Virgin Atlantic
02 Dec - 16 Dec Delta direct
09 Dec - 16 Dec Delta direct
01 Dec - 11 Dec British Airways direct
10 Dec - 23 Dec Virgin Atlantic
08 Dec - 06 Jan Air Canada
15 Dec - 22 Dec Air Canada
08 Dec - 15 Dec British Airways direct
04 Dec - 17 Dec Lufthansa
10 Dec - 23 Dec Delta direct
16 Dec - 15 Jan Delta direct
31 Dec - 14 Jan United
30 Dec - 30 Jan United
30 Dec - 30 Jan Virgin Atlantic direct
31 Dec - 14 Jan British Airways direct
23 Dec - 09 Jan United
30 Dec - 06 Jan SWISS
25 Dec - 01 Jan Lufthansa
17 Dec - 13 Jan American Airlines

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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