AA 4047 then G7 3376 at O'Hare
Richmond → Chicago → St Louis
Timetable, Chicago time
18:59AA 4047 from Richmond at the gate
11:00G7 3376 to St Louis leaves the gate
16 h 01 apart on the timetable, overnight
G7 3376 leaves 16 h 01 after AA 4047 arrives on the timetable: more than half a day, so not a connection we count.