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

Return flights

27 Jul - 10 Aug	Lufthansa
08 Jul - 10 Aug	Alaska Airlines
23 Jul - 30 Jul	Alaska Airlines
19 Jul - 25 Jul	Lufthansa
19 Jul - 29 Jul	Lufthansa
17 Jul - 08 Aug	Lufthansa
09 Jul - 23 Jul	Lufthansa
18 Jul - 26 Jul	Alaska Airlines
02 Jul - 19 Jul	Lufthansa
11 Jul - 18 Jul	Air Canada
06 Jul - 10 Jul	Lufthansa
12 Jul - 19 Jul	Air Canada
03 Jul - 10 Jul	Alaska Airlines

Also check the deals for one-way flights from San Diego to London in July.

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 July from $881

Return flights