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

Return flights

05 Oct - 21 Oct	Air China
09 Oct - 31 Oct	Air China
25 Oct - 31 Oct	Air China
23 Oct - 27 Oct	Air China
01 Oct - 27 Oct	Air China
09 Oct - 22 Oct	Air France
07 Oct - 21 Oct	KLM
22 Oct - 29 Oct	Air France
21 Oct - 21 Nov	Air France
07 Oct - 28 Oct	KLM
08 Oct - 15 Oct	Air France
13 Oct - 08 Nov	Emirates
17 Oct - 01 Nov	Air France

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 1042€

Return flights