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

Return flights

30 Sep - 14 Oct	LATAM Airlines Group
25 Sep - 18 Oct	LATAM Airlines Group
24 Sep - 14 Oct	Copa
29 Sep - 06 Oct	GOL Linhas Aéreas
23 Sep - 18 Oct	Copa
22 Sep - 03 Oct	Copa
21 Sep - 01 Oct	Copa
23 Sep - 13 Oct	Copa
30 Sep - 13 Oct	Copa
30 Sep - 15 Oct	Copa
21 Sep - 28 Sep	Copa
17 Sep - 24 Sep	ITA Airways
19 Sep - 24 Sep	Copa
19 Sep - 28 Sep	Copa
19 Sep - 29 Sep	Copa
25 Sep - 26 Sep	TAP
19 Sep - 27 Sep	Copa
18 Sep - 25 Sep	Copa
19 Sep - 30 Sep	Azul Airlines
18 Sep - 28 Sep	Copa

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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Cheapest return flights from Porto Alegre to Madrid in September from 781€

Return flights