UA 5210 then AA 3510 at O'Hare
Saginaw → Chicago → Traverse City
Timetable, Chicago time
14:15UA 5210 from Saginaw at the gate
13:45AA 3510 to Traverse City leaves the gate
23 h 30 apart on the timetable, overnight
AA 3510 leaves 23 h 30 after UA 5210 arrives on the timetable: more than half a day, so not a connection we count.