Cheapest return flights from San Diego to London in October from $633

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

Return flights

03 Oct - 06 Oct Scandinavian Airlines
26 Oct - 11 Nov Air Canada
29 Oct - 13 Nov Air Canada
27 Oct - 13 Nov Air Canada
15 Oct - 22 Oct Air Canada
01 Oct - 16 Oct Air Canada
18 Oct - 29 Oct Air Canada
08 Oct - 13 Oct Air Canada
15 Oct - 22 Oct American Airlines direct
19 Oct - 06 Nov British Airways direct
29 Oct - 13 Nov American Airlines direct
27 Oct - 13 Nov American Airlines direct
28 Oct - 04 Nov British Airways
16 Oct - 08 Nov Scandinavian Airlines
22 Oct - 15 Nov Scandinavian Airlines
08 Oct - 15 Oct British Airways
07 Oct - 20 Oct Virgin Atlantic
05 Oct - 02 Nov Air Canada
21 Oct - 26 Oct United
01 Oct - 25 Oct Air Canada

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

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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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