AA 328 then G7 3376 at O'Hare
Dallas-Fort Worth → Chicago → St Louis
Timetable, Chicago time
11:09AA 328 from Dallas-Fort Worth at the gate
11:00G7 3376 to St Louis leaves the gate
23 h 51 apart on the timetable, overnight
G7 3376 leaves 23 h 51 after AA 328 arrives on the timetable: more than half a day, so not a connection we count.