UA 692 then UA 439 at Denver
Cozumel → Denver → Phoenix Sky Harbor
Timetable, Denver time
17:52UA 692 from Cozumel at the gate
20:50UA 439 to Phoenix Sky Harbor leaves the gate
2 h 58 apart on the timetable
The last days
UA 692 and UA 439 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.