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

Return flights

06 Dec - 16 Dec	Copa
03 Dec - 16 Dec	Copa
10 Dec - 17 Dec	Copa
10 Dec - 21 Dec	Copa
11 Dec - 18 Dec	Copa
11 Dec - 21 Dec	Copa
04 Dec - 16 Dec	Copa
03 Dec - 10 Dec	Copa
18 Dec - 25 Dec	Copa
19 Dec - 16 Jan	Copa
17 Dec - 27 Dec	Copa
29 Dec - 06 Jan	Copa
25 Dec - 04 Jan	Copa
16 Dec - 05 Jan	Copa
15 Dec - 02 Jan	Copa
18 Dec - 10 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 $638

Return flights