WN 2019 then DL 9935 at Phoenix
Tucson → Phoenix → San Diego
Timetable, Phoenix time
06:55WN 2019 from Tucson at the gate
12:00DL 9935 to San Diego leaves the gate
5 h 05 apart on the timetable
The last days
WN 2019 and DL 9935 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.