UA 3908 then AA 3907 at Phoenix
Houston → Phoenix → Boise
Timetable, Phoenix time
10:03UA 3908 from Houston at the gate
15:26AA 3907 to Boise leaves the gate
5 h 23 apart on the timetable
The last days
UA 3908 and AA 3907 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.