UA 6105 then AA 873 at O'Hare
Lewisburg → Chicago → Atlanta
Timetable, Chicago time
12:45UA 6105 from Lewisburg at the gate
07:17AA 873 to Atlanta leaves the gate
18 h 32 apart on the timetable, overnight
AA 873 leaves 18 h 32 after UA 6105 arrives on the timetable: more than half a day, so not a connection we count.