AA 813 then AA 1408 at DFW
Newark → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
20:29AA 813 from Newark at the gate
10:23AA 1408 to Huatulco leaves the gate
13 h 54 apart on the timetable, overnight
AA 1408 leaves 13 h 54 after AA 813 arrives on the timetable: more than half a day, so not a connection we count.