AA 5640 then AA 2753 at DFW
Gainesville → Dallas-Fort Worth → Valparaiso
Timetable, Dallas-Fort Worth time
19:15AA 5640 from Gainesville at the gate
16:51AA 2753 to Valparaiso leaves the gate
21 h 36 apart on the timetable, overnight
AA 2753 leaves 21 h 36 after AA 5640 arrives on the timetable: more than half a day, so not a connection we count.