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

Return flights

08 Dec - 17 Dec	Air Canada
20 Dec - 03 Jan	Ethiopian Airlines
26 Dec - 18 Jan	Air Canada
26 Dec - 11 Jan	Xiamen Airlines
01 Dec - 23 Dec	Turkish Airlines
26 Dec - 15 Jan	Xiamen Airlines
30 Dec - 20 Jan	Air Canada
10 Dec - 17 Dec	Air Canada
09 Dec - 25 Dec	Turkish Airlines
31 Dec - 12 Jan	Air Canada
05 Dec - 14 Dec	jetBlue
03 Dec - 07 Dec	jetBlue
08 Dec - 14 Dec	Turkish Airlines
07 Dec - 14 Dec	Air Canada
03 Dec - 10 Dec	Turkish Airlines
31 Dec - 08 Jan	Air Canada
11 Dec - 09 Jan	Air Canada
12 Dec - 10 Jan	Turkish Airlines
12 Dec - 11 Jan	Air Canada
14 Dec - 29 Dec	Norse Atlantic Airways (UK)

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from New York to Seoul in December from $853

Return flights