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

Return flights

06 Oct - 22 Oct	Air Premia
23 Oct - 18 Nov	Air China
19 Oct - 10 Nov	Air China
12 Oct - 14 Nov	Air China
12 Oct - 21 Oct	Air China
15 Oct - 24 Oct	Air China
13 Oct - 24 Oct	Air China
21 Oct - 30 Nov	Air Premia
07 Oct - 15 Oct	Aeromexico
09 Oct - 23 Oct	Ethiopian Airlines
13 Oct - 26 Oct	Ethiopian Airlines
14 Oct - 30 Oct	Ethiopian Airlines
22 Oct - 29 Oct	Air France
10 Oct - 20 Nov	Air France
15 Oct - 29 Oct	KLM
15 Oct - 05 Nov	Air France
25 Oct - 05 Nov	Ethiopian Airlines
24 Oct - 17 Nov	Turkish Airlines
24 Oct - 02 Nov	Turkish Airlines
21 Oct - 19 Nov	Emirates

Also check the deals for one-way flights from Seoul to Sao Paulo in October.

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 Seoul to Sao Paulo in October from $1159

Return flights