Cheapest return flights from San Diego to London in September from 500€

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

Return flights

22 Sep - 28 Sep Frontier Airlines
11 Sep - 23 Sep Frontier Airlines
03 Sep - 05 Sep Air Canada
23 Sep - 30 Sep United
02 Sep - 09 Sep United
09 Sep - 23 Sep United
05 Sep - 12 Sep Lufthansa
01 Sep - 11 Sep Frontier Airlines
22 Sep - 03 Oct Air Canada
01 Sep - 16 Sep Delta
30 Sep - 06 Oct Virgin Atlantic
24 Sep - 06 Oct Virgin Atlantic
15 Sep - 26 Sep Frontier Airlines
29 Sep - 06 Oct United
29 Sep - 06 Oct British Airways direct
26 Sep - 03 Oct Air Canada
25 Sep - 05 Oct British Airways direct
16 Sep - 13 Oct Virgin Atlantic
24 Sep - 06 Oct British Airways direct

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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