DL 4634 then UA 3501 at Detroit
Indianapolis → Detroit → Chicago O'Hare
Timetable, Detroit time
07:55DL 4634 from Indianapolis at the gate
06:15UA 3501 to Chicago O'Hare leaves the gate
22 h 20 apart on the timetable, overnight
UA 3501 leaves 22 h 20 after DL 4634 arrives on the timetable: more than half a day, so not a connection we count.