AA 352 then AA 1577 at Miami
Guatemala City → Miami → Charlotte
Timetable, Miami time
15:09AA 352 from Guatemala City at the gate
19:02AA 1577 to Charlotte leaves the gate
3 h 53 apart on the timetable
The last days
AA 352 and AA 1577 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.