UA 5192 then AA 3316 at O'Hare
Jacksonville → Chicago → Los Angeles
Timetable, Chicago time
17:30UA 5192 from Jacksonville at the gate
15:25AA 3316 to Los Angeles leaves the gate
21 h 55 apart on the timetable, overnight
AA 3316 leaves 21 h 55 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.