UA 3884 then AA 3464 at O'Hare
Melbourne (Florida) → Chicago → Nashville
Timetable, Chicago time
01:06UA 3884 from Melbourne (Florida) at the gate
22:35AA 3464 to Nashville leaves the gate
21 h 29 apart on the timetable
AA 3464 leaves 21 h 29 after UA 3884 arrives on the timetable: more than half a day, so not a connection we count.