Cheapest return flights from San Diego to London in September from 510€

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

Return flights

17 Sep - 02 Oct Spirit Airlines
10 Sep - 17 Sep Spirit Airlines
10 Sep - 16 Sep Spirit Airlines
18 Sep - 26 Sep Spirit Airlines
06 Sep - 20 Sep Spirit Airlines
01 Sep - 10 Sep Frontier Airlines
10 Sep - 28 Sep Spirit Airlines
26 Sep - 03 Oct Spirit Airlines
05 Sep - 13 Sep Spirit Airlines
18 Sep - 23 Sep Alaska Airlines
17 Sep - 01 Oct Spirit Airlines
17 Sep - 30 Sep Alaska Airlines
16 Sep - 13 Oct Hawaiian 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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