AS 3319 then WN 4619 at Phoenix
Boise → Phoenix → San Diego
Timetable, Phoenix time
15:46AS 3319 from Boise at the gate
16:15WN 4619 to San Diego leaves the gate
29 min apart on the timetable
The last days
AS 3319 and WN 4619 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.