AirHint found the following cheapest return flights from Guadalajara (GDL) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

23 Dec - 15 Jan	Viva
04 Dec - 12 Dec	Volaris
06 Dec - 11 Dec	Aeromexico
03 Dec - 11 Dec	Volaris
25 Dec - 30 Dec	Copa
06 Dec - 13 Dec	Viva
24 Dec - 30 Dec	Volaris
05 Dec - 07 Dec	Mexicana
25 Dec - 07 Jan	Volaris
16 Dec - 10 Jan	Viva
16 Dec - 12 Jan	Viva
25 Dec - 09 Jan	Copa
17 Dec - 10 Jan	Viva
15 Dec - 10 Jan	Viva
16 Dec - 09 Jan	Viva
20 Dec - 10 Jan	Aeromexico
07 Dec - 14 Dec	Viva
26 Dec - 09 Jan	Copa
17 Dec - 21 Dec	Viva
05 Dec - 26 Dec	Viva

Also check the deals for one-way flights from Guadalajara to Buenos Aires 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 Buenos Aires in December from $882

Return flights