Cheapest one-way flights from San Francisco to London in December from $237

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

One-Way flights

06 Dec Flair Airlines
04 Dec Flair Airlines
05 Dec Air Canada
01 Dec Air Canada
08 Dec Air Canada
11 Dec Hawaiian Airlines
12 Dec Hawaiian Airlines
14 Dec jetBlue
30 Dec Aer Lingus
01 Dec British Airways direct

Also check the deals for return flights from San Francisco to London in December.

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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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