Cheapest one-way flights from San Francisco to London in December from $343

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

One-Way flights

29 Dec Lufthansa
30 Dec Aer Lingus
31 Dec Aer Lingus
09 Dec Aer Lingus
10 Dec Aer Lingus
10 Dec British Airways direct
29 Dec Lufthansa direct
31 Dec Lufthansa direct
30 Dec Austrian Airlines direct
09 Dec Air France direct

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.