AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to Montevideo (MVD) in September 2025 (see full year).

Return flights

22 Sep - 01 Oct	GOL Linhas Aéreas
20 Sep - 01 Oct	Azul Airlines
26 Sep - 13 Oct	Azul Airlines
19 Sep - 22 Sep	GOL Linhas Aéreas
30 Sep - 14 Oct	Azul Airlines
04 Sep - 11 Sep	Azul Airlines
09 Sep - 18 Sep	LATAM Airlines Group
22 Sep - 08 Oct	Azul Airlines
18 Sep - 27 Sep	Azul Airlines
03 Sep - 10 Sep	LATAM Airlines Group
12 Sep - 16 Sep	Azul Airlines
04 Sep - 07 Sep	Azul Airlines
11 Sep - 19 Sep	LATAM Airlines Group
12 Sep - 15 Sep	LATAM Airlines Group
01 Sep - 08 Sep	LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro 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 Rio De Janeiro to Montevideo in September from $561

Return flights