AirHint found the following cheapest return flights from Detroit (DTW) to Seoul (ICN) in March 2026 (see full year).

Return flights

11 Mar - 18 Mar	Frontier Airlines
21 Mar - 31 Mar	Hawaiian Airlines
13 Mar - 29 Mar	Turkish Airlines
26 Mar - 04 Apr	Alaska Airlines
26 Mar - 25 Apr	Alaska Airlines
21 Mar - 31 Mar	Delta	direct
11 Mar - 18 Mar	Delta	direct

Also check the deals for one-way flights from Detroit to Seoul in March.

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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Cheapest return flights from Detroit to Seoul in March from 1007€

Return flights