UA 312 then GB 397 at O'Hare
Pittsburgh → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
18:39UA 312 from Pittsburgh at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
12 h 21 apart on the timetable, overnight
GB 397 leaves 12 h 21 after UA 312 arrives on the timetable: more than half a day, so not a connection we count.