UA 5874 then OO 6080 at O'Hare
Grand Rapids → Chicago → Saginaw
Timetable, Chicago time
14:10UA 5874 from Grand Rapids at the gate
13:25OO 6080 to Saginaw leaves the gate
23 h 15 apart on the timetable, overnight
OO 6080 leaves 23 h 15 after UA 5874 arrives on the timetable: more than half a day, so not a connection we count.