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

Return flights

30 Oct - 10 Nov	Lufthansa
31 Oct - 10 Nov	Air Canada
07 Oct - 14 Oct	Virgin Atlantic
07 Oct - 20 Oct	Virgin Atlantic
28 Oct - 06 Nov	Virgin Atlantic
29 Oct - 05 Nov	Virgin Atlantic
28 Oct - 11 Nov	Virgin Atlantic
01 Oct - 26 Oct	Virgin Atlantic
08 Oct - 21 Oct	Lufthansa
27 Oct - 03 Nov	Virgin Atlantic
01 Oct - 07 Oct	Virgin Atlantic
22 Oct - 07 Nov	Virgin Atlantic
28 Oct - 04 Nov	Lufthansa
01 Oct - 05 Oct	Virgin Atlantic
01 Oct - 15 Oct	Virgin Atlantic
28 Oct - 25 Nov	jetBlue
29 Oct - 26 Nov	jetBlue
02 Oct - 21 Oct	SWISS
03 Oct - 18 Oct	Air Canada
15 Oct - 28 Oct	Virgin Atlantic

Also check the deals for one-way flights from London to San Jose 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 London to San Jose in October from 533€

Return flights