AA 1397 then AA 1408 at DFW
Houston → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
15:31AA 1397 from Houston at the gate
10:23AA 1408 to Huatulco leaves the gate
18 h 52 apart on the timetable, overnight
AA 1408 leaves 18 h 52 after AA 1397 arrives on the timetable: more than half a day, so not a connection we count.