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

Return flights

08 Sep - 27 Oct	Avianca
17 Sep - 13 Oct	Azul Airlines
19 Sep - 13 Oct	Azul Airlines
09 Sep - 16 Oct	LATAM Airlines Group
16 Sep - 13 Oct	Azul Airlines
08 Sep - 15 Oct	LATAM Airlines Group
19 Sep - 14 Oct	Azul Airlines
18 Sep - 13 Oct	Avianca
16 Sep - 01 Oct	LATAM Airlines Group
13 Sep - 12 Oct	Azul Airlines
19 Sep - 29 Sep	Azul Airlines
05 Sep - 29 Sep	LATAM Airlines Group
08 Sep - 25 Sep	Azul Airlines
15 Sep - 29 Sep	LATAM Airlines Group
17 Sep - 30 Sep	Azul Airlines
17 Sep - 27 Sep	Azul Airlines
11 Sep - 28 Sep	Avianca
15 Sep - 30 Sep	Avianca
13 Sep - 27 Sep	Azul Airlines
16 Sep - 27 Sep	Azul Airlines

Also check the deals for one-way flights from Madrid 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 Madrid to Montevideo in September from $943

Return flights