Cheapest one-way flights from Chicago to Seoul in September from 442€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in September 2026 (see full year).

One-Way flights

01 Sep Frontier Airlines
05 Sep Frontier Airlines
16 Sep Air India
19 Sep Alaska Airlines
04 Sep Alaska Airlines
16 Sep Korean Air direct
01 Sep Korean Air direct
05 Sep Korean Air direct
19 Sep Korean Air direct
26 Sep Delta direct

Also check the deals for return flights from Chicago to Seoul in September.

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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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