Cheapest return flights from San Francisco to London in January from $541

AirHint found the following cheapest return flights from San Francisco (SFO) to London (LGW) in January 2026 (see full year).

Return flights

12 Jan - 19 Jan Air Canada
16 Jan - 24 Jan FrenchBee
23 Jan - 25 Jan FrenchBee
16 Jan - 21 Jan FrenchBee
13 Jan - 19 Jan Air Canada
14 Jan - 21 Jan Brussels Airlines
14 Jan - 23 Jan Air Canada
16 Jan - 27 Jan Frontier Airlines
17 Jan - 27 Jan TAP
14 Jan - 19 Jan Air Canada
25 Jan - 16 Feb SWISS
25 Jan - 06 Feb SWISS
30 Jan - 08 Feb SWISS
08 Jan - 12 Feb Turkish Airlines
28 Jan - 15 Feb TAP
25 Jan - 15 Feb Frontier Airlines

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

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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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