UA 5210 then AA 3523 at O'Hare
Saginaw → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:15UA 5210 from Saginaw at the gate
10:00AA 3523 to Cincinnati Northern Kentucky leaves the gate
19 h 45 apart on the timetable, overnight
AA 3523 leaves 19 h 45 after UA 5210 arrives on the timetable: more than half a day, so not a connection we count.