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

Return flights

12 Mar - 16 Mar	Frontier Airlines
31 Mar - 30 Apr	Hawaiian Airlines
06 Mar - 09 Mar	Frontier Airlines
25 Mar - 04 Apr	Frontier Airlines
13 Mar - 29 Mar	Turkish Airlines
28 Mar - 18 Apr	Turkish Airlines
29 Mar - 19 Apr	Spirit Airlines
28 Mar - 11 Apr	Spirit Airlines
31 Mar - 30 Apr	Delta	direct
25 Mar - 04 Apr	Delta	direct
28 Mar - 18 Apr	Delta	direct
28 Mar - 11 Apr	Delta	direct
27 Mar - 17 Apr	Delta	direct
12 Mar - 16 Mar	Delta	direct
06 Mar - 09 Mar	Delta	direct
13 Mar - 29 Mar	Korean Air	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 880€

Return flights