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

Return flights

05 Oct - 12 Oct	easyJet
15 Oct - 22 Oct	easyJet
02 Oct - 12 Oct	easyJet
23 Oct - 25 Oct	easyJet
27 Oct - 07 Nov	easyJet
11 Oct - 25 Oct	easyJet
07 Oct - 14 Oct	easyJet
21 Oct - 28 Oct	easyJet
23 Oct - 02 Nov	Ryanair
01 Oct - 07 Oct	Ryanair
27 Oct - 02 Nov	easyJet
07 Oct - 17 Oct	easyJet
31 Oct - 09 Nov	easyJet
11 Oct - 19 Oct	easyJet
30 Oct - 09 Nov	easyJet
25 Oct - 12 Nov	Ryanair
28 Oct - 04 Nov	Wizz Air Malta
31 Oct - 08 Nov	Ryanair
30 Oct - 04 Nov	easyJet
30 Oct - 08 Nov	easyJet

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 687€

Return flights