AA 3387 then WN 2557 at Phoenix
Carlsbad McClellan-Palomar → Phoenix → San Diego
Timetable, Phoenix time
13:40AA 3387 from Carlsbad McClellan-Palomar at the gate
14:35WN 2557 to San Diego leaves the gatealso AA 6344
55 min apart on the timetable
The last days
AA 3387 and WN 2557 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.