Cheapest return flights from London to San Diego in September from 478€

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

Return flights

22 Sep - 29 Sep Finnair
14 Sep - 28 Sep Finnair
07 Sep - 19 Sep Lufthansa
15 Sep - 19 Sep Lufthansa
10 Sep - 17 Sep Lufthansa
17 Sep - 24 Sep Lufthansa
21 Sep - 28 Sep British Airways direct
14 Sep - 28 Sep British Airways direct
23 Sep - 30 Sep British Airways direct
13 Sep - 27 Sep Air Canada
12 Sep - 03 Oct Air Canada
12 Sep - 03 Oct British Airways direct

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

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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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