AA 2344 then AA 2174 at Charlotte
St Louis → Charlotte → Denver
Timetable, Charlotte time
12:00AA 2344 from St Louis at the gate
13:35AA 2174 to Denver leaves the gate
1 h 35 apart on the timetable
The last days
AA 2344 and AA 2174 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.