AA 3203 then AA 3376 at Phoenix
El Paso → Phoenix → Denver
Timetable, Phoenix time
12:23AA 3203 from El Paso at the gate
13:16AA 3376 to Denver leaves the gate
53 min apart on the timetable
The last days
AA 3203 and AA 3376 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.