Cheapest return flights from San Diego to London in September from $715

Best time to book flights for San Diego (SAN) to London (LGW) flights at AirHint

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

Return flights

19 Sep - 03 Oct jetBlue
22 Sep - 05 Oct jetBlue
19 Sep - 04 Oct jetBlue
07 Sep - 15 Sep jetBlue
10 Sep - 15 Sep jetBlue
08 Sep - 24 Sep Air Canada
04 Sep - 13 Sep jetBlue
09 Sep - 08 Oct Spirit Airlines
15 Sep - 22 Sep Alaska Airlines
26 Sep - 08 Oct Spirit Airlines
13 Sep - 05 Oct Alaska Airlines
03 Sep - 05 Sep Alaska Airlines
01 Sep - 15 Sep Icelandair
07 Sep - 18 Sep Icelandair

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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