AA 2573 then F9 1748 at Phoenix
Charlotte → Phoenix → Denver
Timetable, Phoenix time
01:03AA 2573 from Charlotte at the gate
10:09F9 1748 to Denver leaves the gate
9 h 06 apart on the timetable
The last days
AA 2573 and F9 1748 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.