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

Return flights

28 Oct - 04 Nov	Hawaiian Airlines
10 Oct - 15 Oct	Hawaiian Airlines
03 Oct - 10 Oct	Alaska Airlines
29 Oct - 05 Nov	Hawaiian Airlines
15 Oct - 29 Oct	Hawaiian Airlines
08 Oct - 21 Oct	Icelandair
08 Oct - 22 Oct	Icelandair
08 Oct - 23 Oct	Icelandair
06 Oct - 21 Oct	Icelandair
15 Oct - 23 Oct	Icelandair
13 Oct - 21 Oct	Icelandair
07 Oct - 14 Oct	Icelandair
29 Oct - 22 Nov	Icelandair
31 Oct - 09 Nov	Icelandair
26 Oct - 03 Nov	Icelandair
18 Oct - 16 Nov	Icelandair
17 Oct - 07 Nov	Icelandair
31 Oct - 30 Nov	Icelandair

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

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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Cheapest return flights from San Jose to London in October from $697

Return flights