Cheapest one-way flights from Newark to Seoul in September from 365€

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

One-Way flights

30 Sep Hawaiian Airlines
24 Sep Frontier Airlines
22 Sep Spirit Airlines
26 Sep Frontier Airlines
29 Sep Frontier Airlines
20 Sep Spirit Airlines
23 Sep Spirit Airlines
28 Sep Spirit Airlines
17 Sep Spirit Airlines
15 Sep Spirit Airlines

Also check the deals for return flights from Newark 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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