AS 436 then AA 4471 at Boston
Portland (Oregon) → Boston → Washington National
Timetable, Boston time
06:12AS 436 from Portland (Oregon) at the gate
07:00AA 4471 to Washington National leaves the gate
48 min apart on the timetable
Boston’s board gives an arrival time for only about 58% of its flights, so many days show no gate time.
The last days
AS 436 and AA 4471 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.