Cheapest one-way flights from Chicago to Seoul in September from 324€

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

One-Way flights

30 Sep Spirit Airlines
26 Sep WestJet
20 Sep Frontier Airlines
15 Sep Cathay Pacific
14 Sep Hawaiian Airlines
21 Sep Cathay Pacific
29 Sep Delta direct
26 Sep Delta direct
21 Sep Korean Air direct
15 Sep Delta direct

Also check the deals for return flights from Chicago 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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