UA 3577 then GB 397 at O'Hare
Rochester (ROC) → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:35UA 3577 from Rochester (ROC) at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
16 h 25 apart on the timetable, overnight
GB 397 leaves 16 h 25 after UA 3577 arrives on the timetable: more than half a day, so not a connection we count.