UA 3426 then AA 5272 at Charlotte
Chicago O'Hare → Charlotte → Cleveland
Timetable, Charlotte time
09:46UA 3426 from Chicago O'Hare at the gate
09:30AA 5272 to Cleveland leaves the gate
23 h 44 apart on the timetable, overnight
AA 5272 leaves 23 h 44 after UA 3426 arrives on the timetable: more than half a day, so not a connection we count.