AS 436 then AA 369 at Boston
Portland (Oregon) → Boston → New York LaGuardia
Timetable, Boston time
06:12AS 436 from Portland (Oregon) at the gate
13:03AA 369 to New York LaGuardia leaves the gate
6 h 51 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 369 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.