Cheapest one-way flights from San Francisco to London in September from 169€

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

One-Way flights

21 Sep Frontier Airlines
30 Sep Alaska Airlines
27 Sep Frontier Airlines
19 Sep Frontier Airlines
10 Sep jetBlue
08 Sep Frontier Airlines
05 Sep Frontier Airlines
07 Sep Frontier Airlines
16 Sep Hawaiian Airlines
06 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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