American Airlines has round-trip flights from Dallas (DFW) to Seoul (ICN) for $891, NONSTOP. Flights September, October, November, January, February, March, and April. Extended weekends available. Dates over Thanksgiving are available.
[08/14/2024 @ 11:48 AM CT] Price dropped to $891, was $947. November fares have been removed, but may get re-added at a later time.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.