Cheapest one-way flights from London to San Francisco in December from $482

AirHint found the following cheapest one-way flights from London (LCY) to San Francisco (SFO) in December 2026 (see full year).

One-Way flights

07 Dec SWISS
21 Dec ITA Airways
31 Dec SWISS
19 Dec ITA Airways

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