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

Return flights

15 Dec - 28 Dec	Air France
14 Dec - 28 Dec	Air France
24 Dec - 20 Jan	LATAM Airlines Group
26 Dec - 31 Jan	Beijing Capital Airlines
30 Dec - 22 Jan	Air France
24 Dec - 05 Jan	Ethiopian Airlines
25 Dec - 05 Jan	Ethiopian Airlines
25 Dec - 06 Jan	Ethiopian Airlines
24 Dec - 06 Jan	Ethiopian Airlines
31 Dec - 05 Jan	Ethiopian Airlines
16 Dec - 28 Dec	KLM
23 Dec - 15 Jan	KLM
15 Dec - 30 Jan	Air France
15 Dec - 25 Dec	Beijing Capital Airlines
17 Dec - 28 Dec	Beijing Capital Airlines
14 Dec - 17 Dec	Air France
18 Dec - 31 Dec	Qatar Airways
17 Dec - 24 Dec	Beijing Capital Airlines
19 Dec - 28 Dec	LATAM Airlines Group
18 Dec - 28 Dec	ITA Airways

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 $1564

Return flights