AA 4687 then AS 41 at JFK
Boston → New York → San Francisco
Timetable, New York time
13:59AA 4687 from Boston at the gate
16:27AS 41 to San Francisco leaves the gate
2 h 28 apart on the timetable
The last days
AA 4687 and AS 41 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.