WN 2815 then UA 1637 at Phoenix
Dallas → Phoenix → Denver
Timetable, Phoenix time
14:55WN 2815 from Dallas at the gate
17:41UA 1637 to Denver leaves the gate
2 h 46 apart on the timetable
The last days
WN 2815 and UA 1637 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.