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

Return flights

30 Sep - 07 Oct	LATAM Airlines Group
30 Sep - 13 Oct	LATAM Airlines Group
30 Sep - 17 Oct	LATAM Airlines Group
30 Sep - 16 Oct	LATAM Airlines Group
30 Sep - 15 Oct	LATAM Airlines Group
30 Sep - 18 Oct	LATAM Airlines Group
29 Sep - 07 Oct	LATAM Airlines Group
29 Sep - 21 Oct	Avianca
25 Sep - 02 Oct	LATAM Airlines Group
23 Sep - 26 Oct	Copa
25 Sep - 29 Sep	Avianca
15 Sep - 24 Sep	Avianca
15 Sep - 18 Sep	Avianca
15 Sep - 22 Sep	Iberia
24 Sep - 30 Sep	LATAM Airlines Group
22 Sep - 28 Sep	LATAM Airlines Group
22 Sep - 29 Sep	Avianca
18 Sep - 25 Sep	LATAM Airlines Group
15 Sep - 29 Sep	Avianca
17 Sep - 25 Sep	LATAM Airlines Group

Also check the deals for one-way flights from Montevideo to Madrid 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 Montevideo to Madrid in September from 1007€

Return flights