AirHint found the following cheapest return flights from Chicago (MDW) to Seoul (ICN) in April 2026 (see full year).
Return flights
| 07 Apr - 15 Apr | Korean Air | ||
| 06 Apr - 20 Apr | Delta | ||
| 22 Apr - 13 May | Delta | ||
| 01 Apr - 01 May | Korean Air | ||
| 03 Apr - 06 May | Delta | ||
| 24 Apr - 10 May | Korean Air | ||
| 03 Apr - 10 Apr | Delta | ||
| 09 Apr - 15 Apr | Korean Air |
Also check the deals for one-way flights from Chicago to Seoul in April.
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