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

Return flights

01 Sep - 10 Sep	Air China
01 Sep - 13 Sep	Air China
01 Sep - 14 Sep	Air China
30 Sep - 12 Oct	Air China
05 Sep - 13 Sep	Air China
02 Sep - 13 Sep	Air China
06 Sep - 13 Sep	United
25 Sep - 16 Oct	United
01 Sep - 11 Sep	LATAM Airlines Group
04 Sep - 11 Sep	United
30 Sep - 14 Oct	United
26 Sep - 17 Oct	United
27 Sep - 21 Oct	United
05 Sep - 26 Sep	United
02 Sep - 25 Sep	United
27 Sep - 25 Oct	United
25 Sep - 12 Oct	United
28 Sep - 19 Oct	United
15 Sep - 07 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 1012€

Return flights