AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Seoul (ICN) in December 2025 (see full year).

Return flights

07 Dec - 15 Dec	Frontier Airlines
02 Dec - 05 Dec	Spirit Airlines
01 Dec - 12 Dec	Frontier Airlines
29 Dec - 15 Jan	Turkish Airlines
11 Dec - 19 Jan	Frontier Airlines
08 Dec - 29 Dec	United
23 Dec - 15 Jan	Frontier Airlines
14 Dec - 14 Jan	Frontier Airlines
12 Dec - 22 Dec	Spirit Airlines
14 Dec - 15 Jan	Frontier Airlines
14 Dec - 22 Dec	Frontier Airlines
15 Dec - 22 Dec	Frontier Airlines
12 Dec - 19 Jan	Frontier Airlines
14 Dec - 19 Jan	Frontier Airlines
14 Dec - 21 Dec	Frontier Airlines
10 Dec - 09 Jan	Frontier Airlines
08 Dec - 29 Dec	Korean Air	direct
02 Dec - 05 Dec	Delta	direct
29 Dec - 06 Jan	Turkish Airlines
09 Dec - 06 Jan	Spirit Airlines

Also check the deals for one-way flights from Dallas-Fort Worth 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.

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Cheapest return flights from Dallas-Fort Worth to Seoul in December from 754€

Return flights