AA 3544 then G7 3376 at O'Hare
Detroit → Chicago → St Louis
Timetable, Chicago time
17:05AA 3544 from Detroit at the gate
11:00G7 3376 to St Louis leaves the gate
17 h 55 apart on the timetable, overnight
G7 3376 leaves 17 h 55 after AA 3544 arrives on the timetable: more than half a day, so not a connection we count.