AirHint found the following cheapest return flights from Detroit (DTW) to Seoul (ICN) in May 2026 (see full year).
Return flights
| 05 May - 19 May | WestJet | ||
| 05 May - 19 May | Delta | direct | |
| 28 May - 15 Jun | Lufthansa | ||
| 28 May - 15 Jun | Delta | direct |
Also check the deals for one-way flights from Detroit to Seoul in May.
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