AirHint found the following cheapest return flights from Sao Paulo (GRU) to Warsaw (WAW) in September 2025 (see full year).

Return flights

23 Sep - 15 Oct	Turkish Airlines
21 Sep - 14 Oct	Turkish Airlines
21 Sep - 15 Oct	Turkish Airlines
15 Sep - 20 Sep	Avianca
23 Sep - 12 Oct	KLM
24 Sep - 13 Oct	LATAM Airlines Group
23 Sep - 13 Oct	KLM
24 Sep - 12 Oct	Air France
22 Sep - 12 Oct	Air France
24 Sep - 14 Oct	Air France
09 Sep - 16 Sep	Royal Air Maroc
22 Sep - 14 Oct	Air France
23 Sep - 30 Sep	KLM
05 Sep - 19 Sep	Air France
14 Sep - 26 Sep	KLM
01 Sep - 25 Sep	KLM
23 Sep - 26 Sep	Emirates

Also check the deals for one-way flights from Sao Paulo to Warsaw 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 Sao Paulo to Warsaw in September from 866€

Return flights