AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in October 2026 (see full year).
One-Way flights
| 12 Oct | Turkish Airlines | ||
| 14 Oct | Turkish Airlines | ||
| 14 Oct | Korean Air | direct | |
| 12 Oct | Delta | direct |
Also check the deals for return flights from Chicago to Seoul in October.
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