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

Return flights

03 Dec - 10 Dec	Frontier Airlines
05 Dec - 12 Dec	Spirit Airlines
07 Dec - 15 Dec	Frontier Airlines
04 Dec - 11 Dec	Frontier Airlines
02 Dec - 05 Dec	Spirit Airlines
01 Dec - 14 Dec	Frontier Airlines
26 Dec - 13 Jan	Frontier Airlines
29 Dec - 21 Jan	Korean Air	direct
14 Dec - 15 Jan	Frontier Airlines
14 Dec - 14 Jan	Frontier Airlines
13 Dec - 09 Jan	Spirit Airlines
02 Dec - 05 Dec	Korean Air	direct
03 Dec - 10 Dec	Korean Air	direct
12 Dec - 23 Dec	Frontier Airlines
23 Dec - 08 Jan	Frontier Airlines
04 Dec - 11 Dec	Delta	direct
13 Dec - 16 Jan	Finnair
26 Dec - 06 Jan	Frontier Airlines
22 Dec - 10 Jan	Frontier Airlines
24 Dec - 12 Jan	Delta

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 802€

Return flights