AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Seoul (ICN) in January 2026 (see full year).

Return flights

23 Jan - 01 Feb	Frontier Airlines
17 Jan - 02 Feb	Spirit Airlines
24 Jan - 03 Feb	Spirit Airlines
27 Jan - 10 Feb	Frontier Airlines
21 Jan - 31 Jan	Frontier Airlines
10 Jan - 25 Jan	Frontier Airlines
22 Jan - 28 Jan	Frontier Airlines
26 Jan - 28 Jan	United
24 Jan - 31 Jan	United
24 Jan - 01 Feb	United
18 Jan - 06 Feb	United
22 Jan - 26 Jan	EVA Air
13 Jan - 20 Jan	EVA Air
29 Jan - 02 Feb	United
11 Jan - 20 Jan	Spirit Airlines
15 Jan - 19 Jan	United
10 Jan - 15 Feb	Frontier Airlines
26 Jan - 28 Jan	Delta	direct
24 Jan - 03 Feb	Delta	direct
23 Jan - 01 Feb	Delta	direct

Also check the deals for one-way flights from Dallas-Fort Worth to Seoul in January.

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 January from 688€

Return flights