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

Return flights

27 Sep - 29 Sep	LATAM Airlines Group
24 Sep - 14 Oct	LATAM Airlines Group
19 Sep - 30 Sep	LATAM Airlines Group
30 Sep - 13 Oct	LATAM Airlines Group
29 Sep - 09 Oct	LATAM Airlines Group
25 Sep - 18 Oct	LATAM Airlines Group
23 Sep - 02 Oct	LATAM Airlines Group
24 Sep - 08 Oct	Copa
23 Sep - 18 Oct	LATAM Airlines Group
23 Sep - 13 Oct	Copa
21 Sep - 01 Oct	TAP
19 Sep - 29 Sep	Copa
27 Sep - 09 Oct	Copa
18 Sep - 25 Sep	TAP
19 Sep - 28 Sep	Copa
17 Sep - 29 Sep	Copa
19 Sep - 27 Sep	Copa
17 Sep - 24 Sep	Copa
15 Sep - 23 Sep	Copa
15 Sep - 21 Sep	ITA Airways

Also check the deals for one-way flights from Porto Alegre 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 Porto Alegre to Madrid in September from $801

Return flights