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

Return flights

05 Aug - 19 Aug	Icelandair
11 Aug - 18 Aug	Icelandair
07 Aug - 21 Aug	Icelandair
08 Aug - 22 Aug	Icelandair
11 Aug - 16 Aug	Lufthansa
08 Aug - 15 Aug	Icelandair
17 Aug - 23 Aug	Icelandair
17 Aug - 31 Aug	Scandinavian Airlines
17 Aug - 31 Aug	British Airways	direct
11 Aug - 18 Aug	British Airways	direct

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

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 London to San Diego in August from 789€

Return flights