WN 2309 then WN 2521 at Phoenix
San Diego → Phoenix → Atlanta
Timetable, Phoenix time
08:20WN 2309 from San Diego at the gate
09:00WN 2521 to Atlanta leaves the gate
40 min apart on the timetable
The last days
WN 2309 and WN 2521 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.