UA 3521 then AA 5050 at Charlotte
Newark → Charlotte → Pensacola
Timetable, Charlotte time
14:38UA 3521 from Newark at the gate
14:09AA 5050 to Pensacola leaves the gate
23 h 31 apart on the timetable, overnight
AA 5050 leaves 23 h 31 after UA 3521 arrives on the timetable: more than half a day, so not a connection we count.