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

Return flights

17 Sep - 30 Sep	China Airlines
13 Sep - 14 Sep	China Airlines
14 Sep - 18 Sep	China Airlines
04 Sep - 14 Sep	China Airlines
07 Sep - 14 Sep	EVA Air
09 Sep - 14 Oct	China Airlines
03 Sep - 08 Oct	Etihad Airways
15 Sep - 21 Oct	EVA Air
01 Sep - 16 Sep	Etihad Airways
15 Sep - 30 Sep	EVA Air
04 Sep - 11 Sep	China Airlines
06 Sep - 13 Sep	China Airlines
16 Sep - 21 Sep	China Airlines
14 Sep - 12 Oct	Cathay Pacific
26 Sep - 10 Oct	Cathay Pacific
20 Sep - 03 Oct	EVA Air
19 Sep - 10 Oct	EVA Air
25 Sep - 16 Oct	EVA Air
24 Sep - 16 Oct	Cathay Pacific
18 Sep - 02 Oct	Cathay Pacific

Also check the deals for one-way flights from New York to Seoul in September.

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 September from $920

Return flights