AirHint found the following cheapest return flights from London (LTN) to San Jose (SJO) in January 2026 (see full year).

Return flights

23 Jan - 07 Feb	easyJet
14 Jan - 27 Jan	easyJet
14 Jan - 24 Jan	easyJet
19 Jan - 27 Jan	Ryanair
31 Jan - 10 Feb	Ryanair
19 Jan - 25 Jan	Ryanair
19 Jan - 03 Feb	Ryanair
11 Jan - 25 Jan	Ryanair
10 Jan - 24 Jan	Ryanair
25 Jan - 14 Feb	easyJet
06 Jan - 20 Jan	easyJet
06 Jan - 27 Jan	easyJet
06 Jan - 17 Jan	easyJet
12 Jan - 27 Jan	Ryanair
06 Jan - 17 Feb	easyJet
18 Jan - 01 Feb	easyJet

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

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 January from 665€

Return flights