Cheapest one-way NYC–ICN flights, September

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

One-Way flights

16 Sep Alaska Airlines
14 Sep Alaska Airlines
22 Sep Spirit Airlines
28 Sep Spirit Airlines
02 Sep Alaska Airlines
02 Sep Air Premia direct
27 Sep Cathay Pacific
26 Sep Cathay Pacific
25 Sep Air Premia direct
11 Sep Air Premia direct

Also check the deals for return flights from New York to Seoul in September.

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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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