UA 3884 then AA 846 at O'Hare
Melbourne (Florida) → Chicago → Phoenix
Timetable, Chicago time
01:06UA 3884 from Melbourne (Florida) at the gate
21:30AA 846 to Phoenix leaves the gate
20 h 24 apart on the timetable
AA 846 leaves 20 h 24 after UA 3884 arrives on the timetable: more than half a day, so not a connection we count.