AA 2575 then AA 4021 at Phoenix
Boston → Phoenix → Carlsbad McClellan-Palomar
Timetable, Phoenix time
13:59AA 2575 from Boston at the gate
17:03AA 4021 to Carlsbad McClellan-Palomar leaves the gate
3 h 04 apart on the timetable
The last days
AA 2575 and AA 4021 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.