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

Return flights

14 Sep - 24 Sep	Copa
10 Sep - 01 Oct	Copa
20 Sep - 29 Sep	Copa
22 Sep - 29 Sep	Copa
16 Sep - 26 Sep	Copa
17 Sep - 27 Sep	Copa
17 Sep - 24 Sep	Copa
15 Sep - 25 Sep	Copa
15 Sep - 29 Sep	Copa
01 Sep - 08 Sep	Copa
15 Sep - 24 Sep	Copa
22 Sep - 06 Oct	Copa
24 Sep - 12 Oct	Copa
24 Sep - 01 Oct	Copa
30 Sep - 15 Oct	Arajet
06 Sep - 25 Oct	Copa
29 Sep - 03 Oct	Copa

Also check the deals for one-way flights from Mexico City to Montevideo in September.

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 September from $636

Return flights