AA 3190 then AA 2582 at Miami
Atlanta → Miami → Boston
Timetable, Miami time
09:39AA 3190 from Atlanta at the gate
13:40AA 2582 to Boston leaves the gate
4 h 01 apart on the timetable
The last days
AA 3190 and AA 2582 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.