AA 280 then AA 1408 at DFW
Seoul → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
16:45AA 280 from Seoul at the gate
10:23AA 1408 to Huatulco leaves the gate
17 h 38 apart on the timetable, overnight
AA 1408 leaves 17 h 38 after AA 280 arrives on the timetable: more than half a day, so not a connection we count.