Cheapest return flights from San Diego to London in September from $586

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

Return flights

22 Sep - 08 Oct Spirit Airlines
05 Sep - 07 Sep Spirit Airlines
27 Sep - 07 Oct Spirit Airlines
24 Sep - 01 Oct Spirit Airlines
03 Sep - 10 Sep Spirit Airlines
20 Sep - 27 Sep Spirit Airlines
08 Sep - 24 Sep Frontier Airlines
20 Sep - 05 Oct Spirit Airlines
03 Sep - 08 Sep Delta
06 Sep - 20 Sep Spirit Airlines
06 Sep - 15 Sep Spirit Airlines
09 Sep - 17 Sep Spirit Airlines
07 Sep - 18 Sep Spirit Airlines
09 Sep - 14 Sep Spirit Airlines
26 Sep - 05 Oct Hawaiian Airlines
24 Sep - 02 Oct Spirit Airlines
19 Sep - 04 Oct Frontier Airlines
12 Sep - 04 Oct jetBlue
15 Sep - 11 Oct Frontier Airlines
17 Sep - 11 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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