UA 5192 then AA 4770 at O'Hare
Jacksonville → Chicago → Columbus (Ohio)
Timetable, Chicago time
15:30UA 5192 from Jacksonville at the gate
11:45AA 4770 to Columbus (Ohio) leaves the gate
20 h 15 apart on the timetable, overnight
AA 4770 leaves 20 h 15 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.