Cheapest one-way flights from San Francisco to London in September from 224€

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

One-Way flights

02 Sep Frontier Airlines
06 Sep Frontier Airlines
08 Sep Frontier Airlines
04 Sep Frontier Airlines
13 Sep Hawaiian Airlines
23 Sep Hawaiian Airlines
24 Sep Hawaiian Airlines
05 Sep Hawaiian Airlines
07 Sep Sun Country Airlines
11 Sep Hawaiian 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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.