UA 4774 then GB 397 at O'Hare
Tucson → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
13:02UA 4774 from Tucson at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
17 h 58 apart on the timetable, overnight
GB 397 leaves 17 h 58 after UA 4774 arrives on the timetable: more than half a day, so not a connection we count.