AA 3354 then WN 2124 at Phoenix
Houston → Phoenix → Denver
Timetable, Phoenix time
08:05AA 3354 from Houston at the gate
09:55WN 2124 to Denver leaves the gate
1 h 50 apart on the timetable
The last days
AA 3354 and WN 2124 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.