UA 4805 then GB 397 at O'Hare
Dayton → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:44UA 4805 from Dayton at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
16 h 16 apart on the timetable, overnight
GB 397 leaves 16 h 16 after UA 4805 arrives on the timetable: more than half a day, so not a connection we count.