OO 6105 then AA 3657 at O'Hare
Lewisburg → Chicago → Key West
Timetable, Chicago time
12:37OO 6105 from Lewisburg at the gate
07:30AA 3657 to Key West leaves the gate
18 h 53 apart on the timetable, overnight
AA 3657 leaves 18 h 53 after OO 6105 arrives on the timetable: more than half a day, so not a connection we count.