Cheapest return flights from San Francisco to London in September from 499€

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

Return flights

21 Sep - 27 Sep Scandinavian Airlines
17 Sep - 30 Sep Scandinavian Airlines
10 Sep - 18 Sep Scandinavian Airlines
03 Sep - 20 Sep Scandinavian Airlines
21 Sep - 27 Sep Finnair direct
10 Sep - 18 Sep British Airways direct
03 Sep - 20 Sep Iberia direct
17 Sep - 30 Sep British Airways direct

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

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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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