Cheapest one-way flights from San Francisco to London in September from 184€

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

One-Way flights

16 Sep TAP
29 Sep TAP
23 Sep TAP
22 Sep TAP
25 Sep TAP
15 Sep TAP
17 Sep TAP
20 Sep TAP
27 Sep TAP
28 Sep Frontier Airlines

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

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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