OO 225 then UA 5853 at O'Hare
Richmond → Chicago → Saginaw
Timetable, Chicago time
11:48OO 225 from Richmond at the gate
10:37UA 5853 to Saginaw leaves the gate
22 h 49 apart on the timetable, overnight
UA 5853 leaves 22 h 49 after OO 225 arrives on the timetable: more than half a day, so not a connection we count.