AirHint found the following cheapest return flights from Madrid (MAD) to Sao Paulo (GRU) in September 2026 (see full year).

Return flights

11 Sep - 25 Sep	Royal Air Maroc
07 Sep - 30 Sep	Royal Air Maroc
15 Sep - 22 Sep	Delta
12 Sep - 11 Oct	Royal Air Maroc
07 Sep - 04 Oct	Royal Air Maroc
07 Sep - 26 Sep	TAP
04 Sep - 25 Sep	Lufthansa
05 Sep - 25 Sep	Lufthansa
14 Sep - 30 Sep	Royal Air Maroc
15 Sep - 24 Sep	Lufthansa
01 Sep - 13 Sep	United
15 Sep - 24 Sep	Iberia	direct
12 Sep - 11 Oct	Iberia	direct
20 Sep - 03 Oct	Iberia	direct
07 Sep - 04 Oct	Iberia	direct

Also check the deals for one-way flights from Madrid to Sao Paulo 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 Sao Paulo in September from 624€

Return flights