DL 366 then DL 2525 at Phoenix
Atlanta → Phoenix → Salt Lake City
Timetable, Phoenix time
15:06DL 366 from Atlanta at the gate
18:25DL 2525 to Salt Lake City leaves the gate
3 h 19 apart on the timetable
The last days
DL 366 and DL 2525 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.