UA 511 then UA 6080 at O'Hare
Washington National → Chicago → Saginaw
Timetable, Chicago time
14:27UA 511 from Washington National at the gate
13:25UA 6080 to Saginaw leaves the gate
22 h 58 apart on the timetable, overnight
UA 6080 leaves 22 h 58 after UA 511 arrives on the timetable: more than half a day, so not a connection we count.