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

Return flights

16 Dec - 25 Dec	Iberia
23 Dec - 17 Jan	Iberia
28 Dec - 15 Jan	Volaris El Salvador
25 Dec - 10 Jan	Spirit Airlines
29 Dec - 15 Jan	Spirit Airlines
18 Dec - 25 Dec	British Airways
16 Dec - 20 Dec	British Airways
15 Dec - 20 Dec	British Airways
23 Dec - 11 Jan	Avianca
21 Dec - 31 Dec	Iberia
15 Dec - 10 Jan	Volaris Costa Rica
30 Dec - 17 Jan	Volaris Costa Rica
23 Dec - 12 Jan	Avianca
23 Dec - 05 Jan	Iberojet
18 Dec - 08 Jan	Spirit Airlines
18 Dec - 25 Dec	British Airways	direct
16 Dec - 25 Dec	British Airways	direct
22 Dec - 28 Dec	Iberia
14 Dec - 28 Dec	Iberia
18 Dec - 23 Dec	British Airways

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

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from San Jose to London in December from 734€

Return flights