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

Return flights

09 Dec - 16 Dec	Copa
02 Dec - 16 Dec	Copa
10 Dec - 17 Dec	Copa
06 Dec - 14 Dec	Copa
16 Dec - 24 Jan	Copa
05 Dec - 15 Dec	LATAM Airlines Group
24 Dec - 01 Jan	Copa
09 Dec - 08 Jan	Copa
25 Dec - 01 Jan	Copa
22 Dec - 02 Jan	Copa
28 Dec - 02 Jan	Copa
25 Dec - 04 Jan	Copa
25 Dec - 03 Jan	Copa
20 Dec - 01 Jan	Copa
26 Dec - 02 Jan	Copa

Also check the deals for one-way flights from Mexico City 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 Mexico City to Montevideo in December from $609

Return flights