Cheapest one-way flights from San Francisco to London in May from $365
AirHint found the following cheapest one-way flights from San Francisco (SFO) to London (LGW) in May 2025 (see full year).
One-Way flights
| 18 May | Vueling Airlines | ||
| 13 May | SWISS | ||
| 28 May | jetBlue | ||
| 20 May | Iberia | ||
| 21 May | Frontier Airlines | ||
| 26 May | Frontier Airlines | ||
| 17 May | Frontier Airlines | ||
| 27 May | Air Canada | ||
| 19 May | FrenchBee | ||
| 25 May | Alaska Airlines |
Also check the deals for return flights from San Francisco to London in May.
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.
