G7 3375 then AA 3523 at O'Hare
St Louis → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
17:47G7 3375 from St Louis at the gate
10:00AA 3523 to Cincinnati Northern Kentucky leaves the gate
16 h 13 apart on the timetable, overnight
AA 3523 leaves 16 h 13 after G7 3375 arrives on the timetable: more than half a day, so not a connection we count.