DL 5446 then UA 5814 at Detroit
Cincinnati → Detroit → Chicago O'Hare
Timetable, Detroit time
17:10DL 5446 from Cincinnati at the gate
06:15UA 5814 to Chicago O'Hare leaves the gate
13 h 05 apart on the timetable, overnight
UA 5814 leaves 13 h 05 after DL 5446 arrives on the timetable: more than half a day, so not a connection we count.