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Cheapest return flights from San Francisco (SFO) to London (LHR), May

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Dates, airline, and price
Dates	Airline	Price
01 May 15 May	Scandinavian Airlines
13 May 20 May	Scandinavian Airlines
13 May 20 May	British Airways Direct Flight
22 May 05 Jun	Scandinavian Airlines
01 May 15 May	British Airways Direct Flight
22 May 05 Jun	Finnair Direct Flight

deals for one-way flights from San Francisco to London in May.

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Updated Jul 5, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest return flights from San Francisco (SFO) to London (LHR), May

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