AA 6247 then UA 6080 at O'Hare
Columbus (Ohio) → Chicago → Saginaw
Timetable, Chicago time
14:20AA 6247 from Columbus (Ohio) at the gate
13:25UA 6080 to Saginaw leaves the gate
23 h 05 apart on the timetable, overnight
UA 6080 leaves 23 h 05 after AA 6247 arrives on the timetable: more than half a day, so not a connection we count.