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

Return flights

01 Dec - 18 Dec	easyJet
01 Dec - 16 Dec	Wizz Air Malta
09 Dec - 23 Dec	easyJet
01 Dec - 15 Dec	easyJet
02 Dec - 17 Dec	easyJet
01 Dec - 10 Dec	easyJet
06 Dec - 18 Dec	Ryanair
06 Dec - 16 Dec	Ryanair
23 Dec - 31 Jan	easyJet
31 Dec - 20 Jan	easyJet
29 Dec - 18 Jan	Ryanair
02 Dec - 30 Dec	easyJet
14 Dec - 30 Dec	easyJet
30 Dec - 14 Jan	Wizz Air
31 Dec - 17 Jan	easyJet
30 Dec - 17 Jan	easyJet
31 Dec - 10 Jan	easyJet
30 Dec - 11 Jan	easyJet
29 Dec - 17 Jan	easyJet
27 Dec - 17 Jan	easyJet

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

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 December from 771€

Return flights