AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in April 2026 (see full year).
One-Way flights
| 20 Apr | Turkish Airlines | ||
| 15 Apr | Air India | ||
| 19 Apr | Turkish Airlines | ||
| 07 Apr | Korean Air | direct | |
| 20 Apr | Korean Air | direct | |
| 15 Apr | Delta | direct | |
| 12 Apr | Delta | ||
| 19 Apr | Korean Air | direct | |
| 12 Apr | Delta | direct |
Also check the deals for return flights from Chicago to Seoul in April.
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