AA 5640 then AA 3450 at DFW
Gainesville → Dallas-Fort Worth → Fargo
Timetable, Dallas-Fort Worth time
19:15AA 5640 from Gainesville at the gate
18:57AA 3450 to Fargo leaves the gate
23 h 42 apart on the timetable, overnight
AA 3450 leaves 23 h 42 after AA 5640 arrives on the timetable: more than half a day, so not a connection we count.