Cheapest return flights from San Diego to London in September from $592

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

16 Sep - 23 Sep jetBlue
05 Sep - 12 Sep jetBlue
03 Sep - 10 Sep jetBlue
21 Sep - 28 Sep jetBlue
23 Sep - 30 Sep Icelandair
29 Sep - 06 Oct Alaska Airlines
27 Sep - 04 Oct Icelandair
19 Sep - 26 Sep Alaska Airlines
01 Sep - 08 Sep Alaska Airlines
09 Sep - 16 Sep Alaska Airlines
15 Sep - 22 Sep Alaska Airlines
17 Sep - 24 Sep Alaska Airlines
24 Sep - 10 Oct Alaska Airlines
25 Sep - 02 Oct Icelandair
29 Sep - 16 Oct Iberia
23 Sep - 08 Oct TAP

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