AA 479 then AA 3740 at DFW
Boston → Dallas-Fort Worth → Acapulco
Timetable, Dallas-Fort Worth time
13:27AA 479 from Boston at the gate
09:45AA 3740 to Acapulco leaves the gate
20 h 18 apart on the timetable, overnight
AA 3740 leaves 20 h 18 after AA 479 arrives on the timetable: more than half a day, so not a connection we count.