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

Return flights

01 Dec - 08 Dec	British Airways	direct
01 Dec - 06 Dec	Icelandair
03 Dec - 15 Dec	British Airways	direct
29 Dec - 05 Jan	British Airways	direct
03 Dec - 06 Dec	easyJet
05 Dec - 19 Dec	British Airways	direct
03 Dec - 04 Dec	Air Europa
08 Dec - 15 Dec	British Airways	direct
04 Dec - 13 Dec	Wizz Air UK
10 Dec - 05 Jan	British Airways	direct
06 Dec - 13 Dec	Wizz Air UK
15 Dec - 30 Dec	Air Transat
24 Dec - 05 Jan	British Airways	direct
27 Dec - 10 Jan	TAP
10 Dec - 09 Jan	Ryanair
26 Dec - 07 Jan	British Airways
11 Dec - 08 Jan	Air Europa
17 Dec - 01 Jan	Air Transat
28 Dec - 02 Jan	TAP
20 Dec - 10 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 758€

Return flights