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

Return flights

16 Sep - 30 Sep	Copa
21 Sep - 02 Oct	Copa
23 Sep - 30 Sep	Copa
23 Sep - 02 Oct	Copa
20 Sep - 03 Oct	Copa
22 Sep - 30 Sep	Copa
17 Sep - 27 Sep	Copa
13 Sep - 26 Sep	Copa
15 Sep - 27 Sep	Copa
22 Sep - 29 Sep	Copa
30 Sep - 15 Oct	Copa
01 Sep - 30 Sep	Avianca
09 Sep - 14 Sep	Copa
11 Sep - 14 Sep	Copa
30 Sep - 31 Oct	LATAM Airlines Group
29 Sep - 04 Oct	Volaris

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 398€

Return flights