Cheapest one-way flights from San Francisco to London in May from 306€

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

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

One-Way flights

06 May Iberia
13 May Iberia
28 May WestJet
14 May Frontier Airlines
20 May Iberia
05 May WestJet
09 May Frontier Airlines
07 May Frontier Airlines
19 May Frontier Airlines
30 May Flair Airlines

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

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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