AirHint found the following cheapest return flights from Seoul (ICN) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

24 Dec - 29 Dec	Turkish Airlines
25 Dec - 27 Dec	Turkish Airlines
31 Dec - 10 Jan	Turkish Airlines
01 Dec - 12 Dec	Turkish Airlines
29 Dec - 29 Jan	Turkish Airlines
17 Dec - 31 Dec	Turkish Airlines
19 Dec - 04 Jan	Turkish Airlines
09 Dec - 23 Dec	Korean Air
27 Dec - 02 Jan	Turkish Airlines
05 Dec - 13 Dec	Air France
20 Dec - 10 Jan	Turkish Airlines

Also check the deals for one-way flights from Seoul to Buenos Aires 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 Buenos Aires in December from $1624

Return flights