AirHint found the following cheapest return flights from San Diego (SAN) to London (LHR) in May 2026 (see full year).

Return flights

05 May - 12 May	Delta
11 May - 20 May	Virgin Atlantic
05 May - 19 May	Delta
11 May - 20 May	British Airways	direct
01 May - 18 May	Iberia
03 May - 17 May	Lufthansa
03 May - 17 May	British Airways	direct
01 May - 15 May	British Airways	direct
01 May - 18 May	British Airways	direct
09 May - 23 May	Scandinavian Airlines
26 May - 09 Jun	Scandinavian Airlines
26 May - 09 Jun	British Airways	direct
18 May - 06 Jun	Delta
28 May - 06 Jun	United
28 May - 06 Jun	British Airways	direct

Also check the deals for one-way flights from San Diego 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.

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Cheapest return flights from San Diego to London in May from 520€

Return flights