Cheapest return flights from Newark to Seoul in September from 745€

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

Return flights

05 Sep - 12 Sep Air Canada
11 Sep - 23 Sep Ethiopian Airlines
18 Sep - 28 Sep Ethiopian Airlines
12 Sep - 19 Sep Ethiopian Airlines
12 Sep - 21 Sep Ethiopian Airlines
04 Sep - 19 Sep Ethiopian Airlines
12 Sep - 10 Oct Ethiopian Airlines
16 Sep - 10 Oct Ethiopian Airlines
09 Sep - 16 Sep Ethiopian Airlines
17 Sep - 19 Oct Porter Airlines (Canada) Ltd
09 Sep - 22 Sep Porter Airlines (Canada) Ltd
05 Sep - 18 Sep Spirit Airlines
17 Sep - 23 Sep Porter Airlines (Canada) Ltd
16 Sep - 15 Oct Frontier Airlines
18 Sep - 07 Oct Spirit Airlines
30 Sep - 12 Oct Ethiopian Airlines
28 Sep - 25 Oct Air Canada
29 Sep - 25 Oct Air Canada
28 Sep - 26 Oct Air Canada
29 Sep - 26 Oct Air Canada

Also check the deals for one-way 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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