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

Return flights

12 Dec - 11 Jan	Spirit Airlines
13 Dec - 08 Jan	Spirit Airlines
04 Dec - 15 Dec	Spirit Airlines
06 Dec - 13 Dec	Spirit Airlines
22 Dec - 10 Jan	Spirit Airlines
02 Dec - 09 Dec	British Airways	direct
01 Dec - 15 Dec	Spirit Airlines
29 Dec - 15 Jan	jetBlue
06 Dec - 27 Dec	Spirit Airlines
22 Dec - 29 Dec	Spirit Airlines
25 Dec - 01 Jan	jetBlue
02 Dec - 13 Dec	Iberia
23 Dec - 09 Jan	Iberojet
23 Dec - 08 Jan	Iberojet
30 Dec - 15 Jan	Iberojet
12 Dec - 22 Dec	Spirit Airlines
17 Dec - 04 Jan	Avianca
16 Dec - 23 Dec	British Airways	direct
29 Dec - 04 Jan	jetBlue
19 Dec - 28 Dec	Spirit Airlines

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.

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Cheapest return flights from San Jose to London in December from 584€

Return flights