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

Return flights

04 Dec - 20 Jan	Air China
24 Dec - 30 Dec	Turkish Airlines
26 Dec - 02 Jan	Turkish Airlines
26 Dec - 31 Jan	Turkish Airlines
24 Dec - 28 Dec	Turkish Airlines
17 Dec - 14 Jan	Turkish Airlines
25 Dec - 01 Jan	Turkish Airlines
28 Dec - 11 Jan	Turkish Airlines
23 Dec - 04 Jan	Turkish Airlines
23 Dec - 06 Jan	Turkish Airlines
25 Dec - 03 Jan	Turkish Airlines
20 Dec - 26 Dec	Turkish Airlines
26 Dec - 03 Jan	Turkish Airlines
12 Dec - 18 Dec	Delta

Also check the deals for one-way flights from Seoul to Sao Paulo 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 Seoul to Sao Paulo in December from 1042€

Return flights