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

Return flights

02 Dec - 18 Dec	Aeromexico	direct
30 Dec - 14 Jan	Aeromexico	direct
31 Dec - 14 Jan	Aeromexico	direct
30 Dec - 19 Jan	Aeromexico	direct
09 Dec - 18 Jan	Iberia
10 Dec - 19 Jan	Iberia
09 Dec - 18 Jan	Aeromexico	direct
04 Dec - 22 Dec	Aeromexico	direct
09 Dec - 28 Dec	Aeromexico	direct
24 Dec - 14 Jan	Aeromexico	direct
30 Dec - 13 Jan	Delta
23 Dec - 26 Jan	Aeromexico	direct
03 Dec - 13 Dec	Iberia
01 Dec - 10 Dec	Iberia
01 Dec - 20 Dec	Aeromexico	direct
03 Dec - 18 Dec	Aeromexico
02 Dec - 10 Dec	Iberia
30 Dec - 10 Jan	Delta
10 Dec - 30 Dec	Iberia
07 Dec - 28 Dec	Iberia

Also check the deals for one-way flights from Guadalajara to Madrid 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 Madrid in December from $744

Return flights