AA 644 then AA 3740 at DFW
Salt Lake City → Dallas-Fort Worth → Acapulco
Timetable, Dallas-Fort Worth time
10:45AA 644 from Salt Lake City at the gate
09:45AA 3740 to Acapulco leaves the gate
23 h apart on the timetable, overnight
AA 3740 leaves 23 h after AA 644 arrives on the timetable: more than half a day, so not a connection we count.