WN 2829 then WN 2309 at Phoenix
Boise → Phoenix → San Diego
Timetable, Phoenix time
07:50WN 2829 from Boise at the gate
08:30WN 2309 to San Diego leaves the gate
40 min apart on the timetable
The last days
WN 2829 and WN 2309 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.