Cheapest return flights from San Francisco to London in August from $623

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

Return flights

24 Aug - 12 Sep Scandinavian Airlines
03 Aug - 19 Aug ITA Airways
11 Aug - 21 Aug Delta
03 Aug - 19 Aug Finnair direct
03 Aug - 18 Aug SWISS
22 Aug - 05 Sep Air Canada
15 Aug - 31 Aug KLM
05 Aug - 12 Aug Aer Lingus
13 Aug - 22 Aug Delta
30 Aug - 06 Sep Delta
05 Aug - 12 Aug Air France direct
22 Aug - 05 Sep Air France direct
11 Aug - 17 Aug SWISS
08 Aug - 16 Aug Delta
24 Aug - 12 Sep Brussels Airlines direct
30 Aug - 06 Sep British Airways direct

Also check the deals for one-way flights from San Francisco to London in August.

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.