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

Return flights

02 Dec - 09 Dec	Iberia
09 Dec - 30 Jan	Finnair
01 Dec - 08 Dec	Iberia
30 Dec - 20 Jan	Iberia
01 Dec - 11 Dec	Iberia
30 Dec - 19 Jan	Iberia
30 Dec - 14 Jan	Iberia
03 Dec - 08 Dec	Iberia
04 Dec - 11 Dec	Iberia
31 Dec - 21 Jan	Iberia
07 Dec - 11 Dec	Iberia
04 Dec - 08 Dec	Iberia
08 Dec - 11 Dec	Finnair
28 Dec - 19 Jan	Iberia
06 Dec - 14 Dec	British Airways
28 Dec - 13 Jan	Iberia
24 Dec - 25 Jan	Aeromexico	direct
15 Dec - 19 Jan	Iberia
09 Dec - 12 Jan	Iberia
08 Dec - 14 Dec	Finnair

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 640€

Return flights