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

Return flights

20 Jan - 31 Jan	Ryanair
20 Jan - 14 Feb	Ryanair
21 Jan - 14 Feb	Ryanair
31 Jan - 14 Feb	Ryanair
29 Jan - 12 Feb	Ryanair
15 Jan - 20 Jan	Ryanair
15 Jan - 24 Jan	Ryanair
15 Jan - 31 Jan	Ryanair
12 Jan - 19 Jan	Ryanair
19 Jan - 26 Jan	Ryanair
30 Jan - 13 Feb	Ryanair
20 Jan - 27 Jan	Ryanair
14 Jan - 23 Jan	Ryanair
16 Jan - 24 Jan	Ryanair
16 Jan - 31 Jan	Ryanair
16 Jan - 20 Feb	Ryanair
17 Jan - 21 Feb	Ryanair
27 Jan - 07 Feb	Ryanair

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 746€

Return flights