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

Return flights

06 Dec - 16 Dec	Wizz Air Malta
02 Dec - 08 Dec	easyJet
02 Dec - 09 Dec	easyJet
06 Dec - 09 Dec	Ryanair
06 Dec - 20 Jan	Ryanair
03 Dec - 13 Dec	easyJet
04 Dec - 25 Dec	easyJet
02 Dec - 07 Dec	easyJet
11 Dec - 01 Jan	easyJet
16 Dec - 24 Jan	easyJet
01 Dec - 08 Dec	Wizz Air Malta
05 Dec - 11 Dec	Wizz Air
02 Dec - 16 Dec	easyJet
07 Dec - 01 Jan	easyJet
30 Dec - 13 Jan	Wizz Air UK
27 Dec - 13 Jan	Ryanair
17 Dec - 24 Jan	easyJet
18 Dec - 18 Jan	easyJet
16 Dec - 13 Jan	easyJet
24 Dec - 15 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 $1038

Return flights