UA 5192 then AA 3635 at O'Hare
Jacksonville → Chicago → La Crosse
Timetable, Chicago time
17:30UA 5192 from Jacksonville at the gate
16:50AA 3635 to La Crosse leaves the gate
23 h 20 apart on the timetable, overnight
AA 3635 leaves 23 h 20 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.