Cheapest one-way flights from Chicago to Seoul in September from 392€

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

One-Way flights

23 Sep Porter Airlines (Canada) Ltd
10 Sep Porter Airlines (Canada) Ltd
26 Sep Frontier Airlines
04 Sep WestJet
20 Sep WestJet
27 Sep WestJet
24 Sep WestJet
25 Sep Korean Air
17 Sep Delta
13 Sep Korean Air

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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