Cheapest return flights from San Diego to London in September from 667€

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

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

Return flights

23 Sep - 30 Sep KLM
22 Sep - 02 Oct Delta
22 Sep - 02 Oct British Airways direct
23 Sep - 30 Sep British Airways direct
27 Sep - 04 Oct United
17 Sep - 24 Sep United
05 Sep - 18 Sep United
05 Sep - 18 Sep British Airways direct
06 Sep - 15 Sep Delta
07 Sep - 14 Sep United
05 Sep - 14 Sep British Airways direct
06 Sep - 15 Sep British Airways direct

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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