AA 5640 then AA 3760 at DFW
Gainesville → Dallas-Fort Worth → Tri-Cities
Timetable, Dallas-Fort Worth time
19:15AA 5640 from Gainesville at the gate
19:14AA 3760 to Tri-Cities leaves the gate
23 h 59 apart on the timetable, overnight
AA 3760 leaves 23 h 59 after AA 5640 arrives on the timetable: more than half a day, so not a connection we count.