AA 4571 then G7 3376 at O'Hare
Grand Rapids → Chicago → St Louis
Timetable, Chicago time
14:51AA 4571 from Grand Rapids at the gate
11:00G7 3376 to St Louis leaves the gate
20 h 09 apart on the timetable, overnight
G7 3376 leaves 20 h 09 after AA 4571 arrives on the timetable: more than half a day, so not a connection we count.