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

Return flights

28 Aug - 01 Sep	Cathay Pacific
21 Aug - 28 Aug	United
16 Aug - 31 Aug	United
20 Aug - 27 Aug	United
17 Aug - 26 Aug	United
28 Aug - 06 Sep	United
28 Aug - 07 Sep	Cathay Pacific
25 Aug - 25 Sep	Air Canada
13 Aug - 20 Aug	Frontier Airlines
10 Aug - 17 Aug	Frontier Airlines
11 Aug - 18 Aug	Spirit Airlines
27 Aug - 03 Sep	Korean Air	direct
25 Aug - 25 Sep	Delta	direct
25 Aug - 01 Sep	Korean Air	direct
24 Aug - 31 Aug	Korean Air	direct
08 Aug - 15 Aug	Frontier Airlines
07 Aug - 14 Aug	Cathay Pacific
29 Aug - 10 Sep	Delta	direct
29 Aug - 09 Sep	Delta	direct
28 Aug - 06 Sep	Delta	direct

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

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 August from 721€

Return flights