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

Return flights

01 Dec - 29 Dec	Air China
10 Dec - 27 Jan	Air France
01 Dec - 11 Dec	Air France
02 Dec - 12 Dec	Air France
15 Dec - 31 Jan	Air France
07 Dec - 18 Dec	Turkish Airlines
01 Dec - 08 Dec	Turkish Airlines
14 Dec - 29 Jan	Air France
09 Dec - 18 Dec	Turkish Airlines
03 Dec - 10 Dec	Air France
08 Dec - 04 Jan	Air China
08 Dec - 20 Dec	Qatar Airways
12 Dec - 26 Dec	Air France
15 Dec - 23 Jan	Qatar Airways
16 Dec - 23 Jan	Qatar Airways
15 Dec - 30 Jan	Air France
03 Dec - 24 Dec	Air France
29 Dec - 18 Jan	Air France
08 Dec - 13 Jan	Lufthansa
29 Dec - 19 Jan	Air China

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

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 December from 1015€

Return flights