AA 1663 then AA 6517 at LAX
Miami → Los Angeles → Denver
Timetable, Los Angeles time
12:20AA 1663 from Miami at the gate
18:30AA 6517 to Denver leaves the gate
6 h 10 apart on the timetable
The last days
AA 1663 and AA 6517 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.