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

Return flights

04 Mar - 20 Mar	Cathay Pacific
15 Mar - 20 Mar	Cathay Pacific
22 Mar - 28 Mar	Cathay Pacific
28 Mar - 14 Apr	EVA Air
02 Mar - 01 Apr	Frontier Airlines
21 Mar - 06 Apr	Frontier Airlines
09 Mar - 31 Mar	Frontier Airlines
31 Mar - 16 Apr	Hawaiian Airlines
31 Mar - 22 Apr	Spirit Airlines
15 Mar - 29 Mar	Frontier Airlines
09 Mar - 31 Mar	Delta	direct
15 Mar - 29 Mar	Delta	direct
02 Mar - 01 Apr	Delta	direct
31 Mar - 22 Apr	Delta	direct
31 Mar - 16 Apr	Delta	direct
01 Mar - 08 Mar	Korean Air	direct
02 Mar - 09 Mar	Korean Air	direct
03 Mar - 10 Mar	Korean Air	direct
25 Mar - 01 Apr	Korean Air	direct
26 Mar - 02 Apr	Korean Air	direct

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

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 March from 712€

Return flights