AA 4023 then UA 6080 at O'Hare
Richmond → Chicago → Saginaw
Timetable, Chicago time
14:06AA 4023 from Richmond at the gate
13:25UA 6080 to Saginaw leaves the gate
23 h 19 apart on the timetable, overnight
UA 6080 leaves 23 h 19 after AA 4023 arrives on the timetable: more than half a day, so not a connection we count.