UA 3876 then GB 397 at O'Hare
Miami → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:49UA 3876 from Miami at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
16 h 11 apart on the timetable, overnight
GB 397 leaves 16 h 11 after UA 3876 arrives on the timetable: more than half a day, so not a connection we count.