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

Return flights

16 Sep - 07 Oct	Etihad Airways
02 Sep - 09 Sep	Cathay Pacific
04 Sep - 13 Sep	Cathay Pacific
11 Sep - 16 Sep	Cathay Pacific
10 Sep - 17 Sep	Cathay Pacific
22 Sep - 17 Oct	Turkish Airlines
04 Sep - 18 Sep	China Airlines
02 Sep - 23 Sep	EVA Air
09 Sep - 25 Sep	Philippine Airlines
05 Sep - 12 Sep	Cathay Pacific
03 Sep - 18 Sep	EVA Air
25 Sep - 18 Oct	EVA Air
19 Sep - 26 Sep	EVA Air
16 Sep - 07 Oct	United	direct
22 Sep - 17 Oct	Delta	direct
25 Sep - 18 Oct	Delta	direct

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 $957

Return flights