AirHint found the following cheapest return flights from Sao Paulo (GRU) to Seoul (ICN) in September 2026 (see full year).

Return flights

29 Sep - 12 Oct	United
08 Sep - 14 Oct	United
29 Sep - 15 Oct	United
29 Sep - 14 Oct	United
08 Sep - 16 Sep	United
07 Sep - 16 Sep	United
07 Sep - 14 Sep	United
04 Sep - 16 Sep	United
08 Sep - 22 Sep	United
21 Sep - 05 Oct	United
29 Sep - 11 Oct	United
15 Sep - 01 Oct	United
30 Sep - 15 Oct	United
29 Sep - 23 Oct	United
21 Sep - 08 Oct	United
01 Sep - 15 Sep	United
03 Sep - 08 Sep	Qatar Airways
01 Sep - 16 Sep	United
04 Sep - 17 Sep	United
15 Sep - 29 Sep	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 863€

Return flights