UA 4441 then GB 397 at O'Hare
Dayton → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
18:43UA 4441 from Dayton at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
12 h 17 apart on the timetable, overnight
GB 397 leaves 12 h 17 after UA 4441 arrives on the timetable: more than half a day, so not a connection we count.