UA 5192 then AA 4118 at O'Hare
Jacksonville → Chicago → Greensboro
Timetable, Chicago time
15:30UA 5192 from Jacksonville at the gate
15:04AA 4118 to Greensboro leaves the gate
23 h 34 apart on the timetable, overnight
AA 4118 leaves 23 h 34 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.