Cheapest one-way flights from New York to Seoul in September from $442

AirHint found the following cheapest one-way flights from New York (LGA) to Seoul (ICN) in September 2025 (see full year).

One-Way flights

06 Sep Frontier Airlines
10 Sep Frontier Airlines
24 Sep Air Canada
27 Sep Frontier Airlines
04 Sep Frontier Airlines
05 Sep Spirit Airlines
18 Sep Frontier Airlines
11 Sep Frontier Airlines
17 Sep Frontier Airlines
20 Sep Air Canada

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

Skyscanner

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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