Cheapest return flights from San Diego to London in September from 519€

AirHint found the following cheapest return flights from San Diego (SAN) to London (LGW) in September 2025 (see full year).

Return flights

10 Sep - 24 Sep Spirit Airlines
20 Sep - 24 Sep Alaska Airlines
06 Sep - 20 Sep Spirit Airlines
09 Sep - 23 Sep Alaska Airlines
06 Sep - 28 Sep Spirit Airlines
18 Sep - 22 Sep Alaska Airlines
06 Sep - 13 Sep Spirit Airlines
10 Sep - 15 Sep Spirit Airlines
22 Sep - 28 Sep Spirit Airlines
08 Sep - 15 Sep Frontier Airlines
15 Sep - 15 Oct Spirit Airlines

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

Skyscanner

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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