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

Return flights

29 Sep - 06 Oct	ANA
22 Sep - 30 Sep	ANA
22 Sep - 28 Sep	ANA
09 Sep - 29 Sep	ANA
18 Sep - 28 Sep	ANA
18 Sep - 29 Sep	ANA
15 Sep - 24 Sep	ANA
09 Sep - 16 Sep	ANA
01 Sep - 15 Sep	ANA
09 Sep - 14 Sep	ANA
21 Sep - 29 Sep	ANA
22 Sep - 05 Oct	ANA
16 Sep - 16 Oct	ANA
30 Sep - 10 Oct	ANA
30 Sep - 14 Oct	ANA
05 Sep - 03 Oct	ANA
19 Sep - 04 Oct	ANA
29 Sep - 04 Oct	ANA
08 Sep - 05 Oct	ANA
09 Sep - 13 Oct	ANA

Also check the deals for one-way flights from Seoul to Newark 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 Seoul to Newark in September from $1079

Return flights