AA 5640 then AA 1761 at DFW
Gainesville → Dallas-Fort Worth → Pittsburgh
Timetable, Dallas-Fort Worth time
19:15AA 5640 from Gainesville at the gate
18:56AA 1761 to Pittsburgh leaves the gate
23 h 41 apart on the timetable, overnight
AA 1761 leaves 23 h 41 after AA 5640 arrives on the timetable: more than half a day, so not a connection we count.