AA 1915 then AA 1408 at DFW
Richmond → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
17:50AA 1915 from Richmond at the gate
10:49AA 1408 to Huatulco leaves the gate
16 h 59 apart on the timetable, overnight
AA 1408 leaves 16 h 59 after AA 1915 arrives on the timetable: more than half a day, so not a connection we count.