Cheapest one-way flights from San Francisco to London in May from $330

AirHint found the following cheapest one-way flights from San Francisco (SFO) to London (LGW) in May 2026 (see full year).

One-Way flights

19 May LEVEL
20 May jetBlue
21 May jetBlue
22 May jetBlue
27 May Alaska Airlines

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

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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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