WN 3045 then UA 5266 at Denver
Tucson → Denver → Albuquerque
Timetable, Denver time
09:55WN 3045 from Tucson at the gate
13:55UA 5266 to Albuquerque leaves the gate
4 h apart on the timetable
The last days
WN 3045 and UA 5266 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.