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 - 12 Dec	Hawaiian Airlines
29 Dec - 15 Jan	United
08 Dec - 11 Dec	United
26 Dec - 18 Jan	Air Canada
29 Dec - 18 Jan	Air Canada
29 Dec - 17 Jan	Air Canada
09 Dec - 06 Jan	Turkish Airlines
10 Dec - 08 Jan	Turkish Airlines
11 Dec - 08 Jan	Air Canada
03 Dec - 31 Dec	Turkish Airlines
01 Dec - 07 Jan	United
10 Dec - 06 Jan	Turkish Airlines
26 Dec - 03 Jan	Turkish Airlines
16 Dec - 31 Dec	Finnair
22 Dec - 31 Dec	Finnair
08 Dec - 11 Dec	Korean Air	direct
03 Dec - 31 Dec	Delta	direct
07 Dec - 12 Dec	Delta	direct
16 Dec - 31 Dec	Delta	direct
22 Dec - 31 Dec	Korean Air	direct

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 $831

Return flights