UA 3908 then AA 3564 at O'Hare
Fort Myers → Chicago → Roanoke
Timetable, Chicago time
14:19UA 3908 from Fort Myers at the gate
13:29AA 3564 to Roanoke leaves the gate
23 h 10 apart on the timetable, overnight
AA 3564 leaves 23 h 10 after UA 3908 arrives on the timetable: more than half a day, so not a connection we count.