Cheapest return SFO–LHR flights, December

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

Return flights

09 Dec - 20 Dec TAP
09 Dec - 20 Dec Lufthansa direct
01 Dec - 28 Dec Scandinavian Airlines
01 Dec - 28 Dec British Airways direct
24 Dec - 31 Dec Scandinavian Airlines
22 Dec - 05 Jan Lufthansa
18 Dec - 22 Dec Aer Lingus
18 Dec - 22 Dec British Airways direct
24 Dec - 31 Dec British Airways direct
22 Dec - 31 Dec SWISS
22 Dec - 05 Jan Iberia direct
20 Dec - 02 Jan Virgin Atlantic
20 Dec - 02 Jan Finnair direct

Also check the deals for one-way 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.