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

Return flights

05 Dec - 09 Dec	Viva
05 Dec - 16 Dec	Viva
01 Dec - 09 Dec	Viva
01 Dec - 10 Dec	Viva
01 Dec - 16 Dec	Viva
05 Dec - 20 Dec	Viva
08 Dec - 14 Dec	Viva
01 Dec - 20 Dec	Viva
12 Dec - 20 Dec	Viva
12 Dec - 27 Dec	Viva
22 Dec - 09 Jan	Viva
28 Dec - 03 Jan	Viva
22 Dec - 04 Jan	Viva
31 Dec - 04 Jan	Aeromexico
21 Dec - 03 Jan	Viva
18 Dec - 03 Jan	Viva
29 Dec - 04 Jan	Copa
28 Dec - 05 Jan	Aeromexico
25 Dec - 03 Jan	Copa
30 Dec - 03 Jan	Copa

Also check the deals for one-way flights from Guadalajara 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 Guadalajara to San Jose in December from $168

Return flights