UA 5210 then AA 3375 at O'Hare
Saginaw → Chicago → Fargo
Timetable, Chicago time
10:10UA 5210 from Saginaw at the gate
09:55AA 3375 to Fargo leaves the gate
23 h 45 apart on the timetable, overnight
AA 3375 leaves 23 h 45 after UA 5210 arrives on the timetable: more than half a day, so not a connection we count.