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

Return flights

09 Sep - 23 Sep	Cathay Pacific
08 Sep - 15 Sep	Cathay Pacific
09 Sep - 16 Sep	Cathay Pacific
02 Sep - 09 Sep	Cathay Pacific
04 Sep - 15 Sep	Cathay Pacific
16 Sep - 23 Sep	Cathay Pacific
04 Sep - 17 Sep	United
10 Sep - 17 Sep	United
23 Sep - 30 Sep	United
10 Sep - 15 Sep	United
29 Sep - 20 Oct	United
18 Sep - 03 Oct	United
23 Sep - 22 Oct	Cathay Pacific
28 Sep - 05 Oct	Korean Air	direct
29 Sep - 06 Oct	Korean Air	direct
23 Sep - 22 Oct	Delta	direct
29 Sep - 20 Oct	Delta	direct
30 Sep - 07 Oct	Korean Air	direct
24 Sep - 01 Oct	Korean Air	direct
26 Sep - 03 Oct	Korean Air	direct

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

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 September from 718€

Return flights