Cheapest one-way flights from San Francisco to London in August from $406

Best time to book flights for San Francisco (SFO) to London (LGW) flights at AirHint

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

One-Way flights

17 Aug Frontier Airlines
20 Aug TAP
10 Aug Vueling Airlines
02 Aug Alaska Airlines
13 Aug Air France
07 Aug Frontier Airlines
23 Aug Alaska Airlines
09 Aug Alaska Airlines
31 Aug Virgin Atlantic
21 Aug Alaska Airlines

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

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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