Cheapest one-way flights from Chicago to Seoul in October from $549

Best time to book flights for Chicago (ORD) to Seoul (ICN) flights at AirHint

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

One-Way flights

20 Oct Turkish Airlines
02 Oct Frontier Airlines
12 Oct WestJet
16 Oct Hawaiian Airlines
20 Oct Korean Air direct
11 Oct Cathay Pacific
16 Oct Delta direct
10 Oct United
12 Oct Korean Air direct
10 Oct Korean Air direct

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

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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