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

Return flights

18 Aug - 28 Aug	United
19 Aug - 26 Aug	United
06 Aug - 26 Aug	United
20 Aug - 27 Aug	United
06 Aug - 31 Aug	United
19 Aug - 25 Aug	United
20 Aug - 31 Aug	United
30 Aug - 12 Sep	United
12 Aug - 02 Sep	United
26 Aug - 08 Sep	United
06 Aug - 02 Sep	United
25 Aug - 17 Sep	United
19 Aug - 09 Sep	United
21 Aug - 28 Aug	United
20 Aug - 26 Aug	United
13 Aug - 21 Aug	United
20 Aug - 11 Sep	United
20 Aug - 04 Sep	United
30 Aug - 30 Sep	United
24 Aug - 06 Sep	United

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

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 August from 869€

Return flights