AA 1363 then UA 281 at Houston
Charlotte → Houston → Denver
Timetable, Houston time
10:24AA 1363 from Charlotte at the gate
09:40UA 281 to Denver leaves the gate
23 h 16 apart on the timetable, overnight
UA 281 leaves 23 h 16 after AA 1363 arrives on the timetable: more than half a day, so not a connection we count.