Cheapest one-way flights from London to San Francisco in December from $433

Best time to book flights for London (LON) to San Francisco (SFO) flights at AirHint

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

One-Way flights

07 Dec Wizz Air Malta
01 Dec Wizz Air Malta
11 Dec Fly Play
15 Dec Fly Play
22 Dec Wizz Air Malta
24 Dec British Airways
18 Dec Wizz Air Malta
07 Dec British Airways direct
11 Dec Iberia direct
01 Dec Iberia direct

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