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

Return flights

20 Oct - 27 Oct	Cathay Pacific
27 Oct - 03 Nov	Cathay Pacific
03 Oct - 13 Oct	United
06 Oct - 29 Oct	United
20 Oct - 29 Oct	United
01 Oct - 20 Oct	United
23 Oct - 06 Nov	United
05 Oct - 12 Oct	Alaska Airlines
02 Oct - 18 Oct	Alaska Airlines
13 Oct - 23 Oct	Frontier Airlines
04 Oct - 11 Oct	United
31 Oct - 08 Nov	Frontier Airlines
05 Oct - 03 Nov	Frontier Airlines
05 Oct - 11 Oct	United
15 Oct - 05 Nov	Frontier Airlines
15 Oct - 05 Nov	Delta	direct
05 Oct - 03 Nov	Delta	direct
27 Oct - 03 Nov	Delta	direct
23 Oct - 06 Nov	Delta	direct
31 Oct - 07 Nov	Korean Air	direct

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

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 October from 655€

Return flights