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

Return flights

17 Sep - 29 Sep	ANA
16 Sep - 08 Oct	Air China
05 Sep - 14 Sep	Air China
02 Sep - 27 Oct	Air China
22 Sep - 01 Oct	Air China
01 Sep - 10 Sep	Air China
16 Sep - 28 Sep	Air China
26 Sep - 01 Oct	Air China
23 Sep - 01 Oct	Air China
19 Sep - 01 Oct	Air China
02 Sep - 23 Sep	Air China
29 Sep - 15 Oct	United
16 Sep - 27 Sep	United
14 Sep - 27 Sep	United
24 Sep - 02 Oct	LATAM Airlines Group
05 Sep - 24 Sep	Air China
27 Sep - 25 Oct	United
23 Sep - 29 Sep	United
12 Sep - 20 Sep	Air China
26 Sep - 20 Oct	United

Also check the deals for one-way flights from Sao Paulo to Seoul 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 Seoul in September from $1021

Return flights