UA 3686 then GB 397 at O'Hare
Jacksonville → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:29UA 3686 from Jacksonville at the gate
07:00GB 397 to Cincinnati Northern Kentucky leaves the gate
16 h 31 apart on the timetable, overnight
GB 397 leaves 16 h 31 after UA 3686 arrives on the timetable: more than half a day, so not a connection we count.