AS 436 then AA 2575 at Boston
Portland (Oregon) → Boston → Phoenix
Timetable, Boston time
06:12AS 436 from Portland (Oregon) at the gate
10:00AA 2575 to Phoenix leaves the gate
3 h 48 apart on the timetable
Boston’s board gives an arrival time for only about 59% of its flights, so many days show no gate time.
The last days
AS 436 and AA 2575 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.