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

Return flights

30 Sep - 07 Oct	Alaska Airlines
01 Sep - 10 Sep	ANA
21 Sep - 28 Sep	ANA
09 Sep - 14 Oct	ANA
04 Sep - 11 Sep	EVA Air
02 Sep - 30 Sep	ANA
03 Sep - 08 Oct	ANA
30 Sep - 28 Oct	ANA
05 Sep - 13 Sep	ANA
04 Sep - 13 Sep	ANA
19 Sep - 24 Sep	ANA
24 Sep - 16 Oct	ANA
01 Sep - 16 Sep	ANA
15 Sep - 21 Oct	ANA
16 Sep - 23 Sep	ANA
09 Sep - 23 Sep	ANA
14 Sep - 12 Oct	ANA
20 Sep - 03 Oct	ANA
19 Sep - 10 Oct	ANA
25 Sep - 16 Oct	ANA

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 $1036

Return flights