AA 1408 then WN 674 at Miami
Phoenix → Miami → Denver
Timetable, Miami time
05:10AA 1408 from Phoenix at the gate
16:20WN 674 to Denver leaves the gate
11 h 10 apart on the timetable
The last days
AA 1408 and WN 674 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.