AA 420 then AA 1408 at DFW
Denver → Dallas-Fort Worth → Huatulco
Timetable, Dallas-Fort Worth time
18:18AA 420 from Denver at the gate
10:23AA 1408 to Huatulco leaves the gate
16 h 05 apart on the timetable, overnight
AA 1408 leaves 16 h 05 after AA 420 arrives on the timetable: more than half a day, so not a connection we count.