AirHint found the following cheapest return flights from New York (NYC) to Seoul (ICN) in December 2026 (see full year).

Return flights

25 Dec - 09 Jan	LOT
10 Dec - 31 Dec	Ethiopian Airlines
29 Dec - 17 Jan	Turkish Airlines
27 Dec - 16 Jan	LOT
28 Dec - 18 Jan	Turkish Airlines
14 Dec - 31 Dec	Finnair
12 Dec - 26 Dec	Finnair
28 Dec - 16 Jan	Finnair
11 Dec - 31 Dec	Ethiopian Airlines
21 Dec - 31 Dec	Finnair
27 Dec - 31 Dec	Japan Airlines
26 Dec - 11 Jan	Finnair
25 Dec - 02 Jan	Finnair
20 Dec - 03 Jan	Finnair
18 Dec - 02 Jan	Finnair
10 Dec - 31 Dec	Korean Air	direct
27 Dec - 31 Dec	Korean Air	direct
28 Dec - 18 Jan	Korean Air	direct
11 Dec - 31 Dec	Asiana Airlines	direct
21 Dec - 31 Dec	Asiana Airlines	direct

Also check the deals for one-way flights from New York 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 New York to Seoul in December from $1197

Return flights