AirHint found the following cheapest return flights from Detroit (DTW) to Seoul (ICN) in December 2025 (see full year).

Return flights

06 Dec - 24 Dec	Spirit Airlines
02 Dec - 19 Dec	United
25 Dec - 21 Jan	Alaska Airlines
06 Dec - 28 Dec	United
04 Dec - 20 Dec	Turkish Airlines
04 Dec - 20 Dec	Delta	direct
02 Dec - 19 Dec	Delta	direct
06 Dec - 24 Dec	Delta	direct
13 Dec - 08 Jan	Spirit Airlines
15 Dec - 30 Dec	United
13 Dec - 31 Dec	United
09 Dec - 10 Jan	United
11 Dec - 11 Jan	Air France
17 Dec - 29 Dec	Air France
10 Dec - 05 Jan	Delta
13 Dec - 05 Jan	KLM
15 Dec - 06 Jan	Delta
19 Dec - 03 Jan	Alaska Airlines
09 Dec - 05 Jan	Korean Air	direct
16 Dec - 02 Jan	Delta

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

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Detroit to Seoul in December from 893€

Return flights