Cheapest one-way flights from Newark to Seoul in September from $452

Best time to book flights for Newark (EWR) to Seoul (ICN) flights at AirHint

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

One-Way flights

23 Sep Spirit Airlines
19 Sep Spirit Airlines
13 Sep Spirit Airlines
11 Sep Air Canada
03 Sep Air Premia direct
11 Sep Air Premia direct
08 Sep WestJet
25 Sep WestJet
06 Sep Air Premia direct
08 Sep Air Premia direct

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul