AA 1618 then AA 5458 at Houston
Phoenix → Houston → Washington National
Timetable, Houston time
13:42AA 1618 from Phoenix at the gate
17:17AA 5458 to Washington National leaves the gate
3 h 35 apart on the timetable
The last days
AA 1618 and AA 5458 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.