WN 3939 then AA 2439 at Phoenix
Salt Lake City → Phoenix → San Diego
Timetable, Phoenix time
16:10WN 3939 from Salt Lake City at the gate
20:38AA 2439 to San Diego leaves the gate
4 h 28 apart on the timetable
The last days
WN 3939 and AA 2439 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.