AirHint found the following cheapest return flights from New York (NYC) to Seoul (ICN) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	China Eastern
26 Dec - 20 Jan	Air Canada
03 Dec - 10 Dec	jetBlue
08 Dec - 29 Dec	Air Canada
29 Dec - 14 Jan	Air Canada
28 Dec - 14 Jan	Air Canada
26 Dec - 18 Jan	Air Canada
29 Dec - 16 Jan	Air Canada
28 Dec - 16 Jan	Air Canada
10 Dec - 15 Dec	Air Canada
30 Dec - 13 Jan	Air Canada
27 Dec - 10 Jan	Air Canada
07 Dec - 13 Dec	Norse Atlantic Airways
29 Dec - 10 Jan	Air Canada
28 Dec - 11 Jan	Air Canada
07 Dec - 14 Dec	Air Canada
12 Dec - 19 Dec	Air Canada
04 Dec - 07 Dec	Norse Atlantic Airways
02 Dec - 09 Dec	Air Canada
03 Dec - 07 Dec	Air Canada

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 $877

Return flights