Cheapest return flights from San Francisco to London in October from 424€

AirHint found the following cheapest return flights from San Francisco (SFO) to London (LGW) in October 2025 (see full year).

Return flights

13 Oct - 27 Oct SWISS
28 Oct - 04 Nov Aer Lingus
02 Oct - 06 Oct Iberia For Level
14 Oct - 28 Oct Alaska Airlines
10 Oct - 31 Oct Alaska Airlines
17 Oct - 09 Nov Frontier Airlines
29 Oct - 12 Nov Air Canada
17 Oct - 28 Oct Alaska Airlines
27 Oct - 10 Nov SWISS
10 Oct - 14 Oct Frontier Airlines
19 Oct - 01 Nov SWISS
23 Oct - 02 Nov TAP
30 Oct - 13 Nov SWISS
03 Oct - 06 Oct Frontier Airlines
12 Oct - 25 Oct Alaska Airlines
06 Oct - 18 Oct TAP
15 Oct - 25 Oct TAP
24 Oct - 08 Nov Scandinavian Airlines

Also check the deals for one-way flights from San Francisco 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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