AA 590 then AA 2733 at Phoenix
St Louis → Phoenix → Boise
Timetable, Phoenix time
16:05AA 590 from St Louis at the gate
21:47AA 2733 to Boise leaves the gate
5 h 42 apart on the timetable
The last days
AA 590 and AA 2733 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.