UA 3499 then AA 2873 at Charlotte
Chicago O'Hare → Charlotte → Tampa
Timetable, Charlotte time
17:12UA 3499 from Chicago O'Hare at the gate
16:08AA 2873 to Tampa leaves the gate
22 h 56 apart on the timetable, overnight
AA 2873 leaves 22 h 56 after UA 3499 arrives on the timetable: more than half a day, so not a connection we count.