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

Return flights

03 Dec - 11 Dec	LATAM Airlines Group
05 Dec - 12 Dec	LATAM Airlines Group
02 Dec - 09 Dec	LATAM Airlines Group
25 Dec - 26 Jan	Avianca
04 Dec - 20 Dec	Avianca
24 Dec - 27 Jan	SWISS
24 Dec - 26 Jan	SWISS
25 Dec - 27 Jan	Lufthansa
01 Dec - 15 Dec	Iberia	direct
25 Dec - 27 Jan	Iberia	direct
24 Dec - 27 Jan	Iberia	direct
05 Dec - 12 Dec	Iberia	direct
03 Dec - 11 Dec	Iberia	direct
25 Dec - 26 Jan	Iberia	direct
24 Dec - 26 Jan	Iberia	direct
08 Dec - 25 Dec	Iberia	direct
31 Dec - 25 Jan	Iberia	direct
11 Dec - 31 Dec	Avianca
04 Dec - 20 Dec	Iberia	direct
05 Dec - 06 Jan	LATAM Airlines Group

Also check the deals for one-way flights from Madrid to Montevideo 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 Madrid to Montevideo in December from 821€

Return flights