AA 4499 then DL 1556 at O'Hare
Charlottesville → Chicago → Los Angeles
Timetable, Chicago time
08:32AA 4499 from Charlottesville at the gate
07:45DL 1556 to Los Angeles leaves the gate
23 h 13 apart on the timetable, overnight
DL 1556 leaves 23 h 13 after AA 4499 arrives on the timetable: more than half a day, so not a connection we count.