UA 5192 then AA 3490 at O'Hare
Jacksonville → Chicago → Grand Rapids
Timetable, Chicago time
17:30UA 5192 from Jacksonville at the gate
13:40AA 3490 to Grand Rapids leaves the gate
20 h 10 apart on the timetable, overnight
AA 3490 leaves 20 h 10 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.