AA 3279 then AA 591 at Charlotte
New York LaGuardia → Charlotte → Denver
Timetable, Charlotte time
09:25AA 3279 from New York LaGuardia at the gate
13:28AA 591 to Denver leaves the gate
4 h 03 apart on the timetable
The last days
AA 3279 and AA 591 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.