AA 390 then AA 1408 at DFW
Mexico City → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
15:25AA 390 from Mexico City at the gate
10:23AA 1408 to Huatulco leaves the gate
18 h 58 apart on the timetable, overnight
AA 1408 leaves 18 h 58 after AA 390 arrives on the timetable: more than half a day, so not a connection we count.