UA 730 then UA 231 at Denver
New Orleans → Denver → Charlotte
Timetable, Denver time
10:14UA 730 from New Orleans at the gate
10:00UA 231 to Charlotte leaves the gate
23 h 46 apart on the timetable, overnight
UA 231 leaves 23 h 46 after UA 730 arrives on the timetable: more than half a day, so not a connection we count.