UA 5192 then AA 3811 at O'Hare
Jacksonville → Chicago → Omaha
Timetable, Chicago time
15:30UA 5192 from Jacksonville at the gate
13:47AA 3811 to Omaha leaves the gate
22 h 17 apart on the timetable, overnight
AA 3811 leaves 22 h 17 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.