AA 1721 then AA 3740 at DFW
Des Moines → Dallas-Fort Worth → Acapulco
Timetable, Dallas-Fort Worth time
11:53AA 1721 from Des Moines at the gate
11:23AA 3740 to Acapulco leaves the gate
23 h 30 apart on the timetable, overnight
AA 3740 leaves 23 h 30 after AA 1721 arrives on the timetable: more than half a day, so not a connection we count.