AA 3453 then AA 1408 at DFW
Fort Smith → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
18:31AA 3453 from Fort Smith at the gate
10:23AA 1408 to Huatulco leaves the gate
15 h 52 apart on the timetable, overnight
AA 1408 leaves 15 h 52 after AA 3453 arrives on the timetable: more than half a day, so not a connection we count.