UA 5192 then AA 3664 at O'Hare
Jacksonville → Chicago → Columbus (Ohio)
Timetable, Chicago time
15:30UA 5192 from Jacksonville at the gate
15:29AA 3664 to Columbus (Ohio) leaves the gate
23 h 59 apart on the timetable, overnight
AA 3664 leaves 23 h 59 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.