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

Return flights

21 Dec - 27 Dec	Viva
22 Dec - 18 Jan	Viva
21 Dec - 30 Dec	Viva
21 Dec - 19 Jan	Viva
22 Dec - 31 Dec	Viva
18 Dec - 27 Dec	Viva
19 Dec - 27 Dec	Viva
17 Dec - 15 Jan	Aeromexico
24 Dec - 28 Dec	Aeromexico
17 Dec - 28 Dec	Aeromexico
24 Dec - 30 Dec	Aeromexico
18 Dec - 15 Jan	Viva
19 Dec - 16 Jan	Viva
19 Dec - 15 Jan	Viva
18 Dec - 30 Dec	Viva
19 Dec - 30 Dec	Viva
23 Dec - 01 Jan	Aeromexico
24 Dec - 02 Jan	Aeromexico
31 Dec - 08 Jan	Copa
22 Dec - 02 Jan	Viva

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 $308

Return flights