AA 4183 then G7 3376 at O'Hare
Columbia Metropolitan → Chicago → St Louis
Timetable, Chicago time
18:30AA 4183 from Columbia Metropolitan at the gate
11:00G7 3376 to St Louis leaves the gate
16 h 30 apart on the timetable, overnight
G7 3376 leaves 16 h 30 after AA 4183 arrives on the timetable: more than half a day, so not a connection we count.