Cheapest return flights from San Diego to London in September from $796

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

15 Sep - 22 Sep jetBlue
20 Sep - 27 Sep Iberia direct
02 Sep - 09 Sep United
14 Sep - 26 Sep British Airways direct
16 Sep - 25 Sep American Airlines direct
15 Sep - 22 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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