AA 863 then DL 2106 at Miami
Washington National → Miami → New York JFK
Timetable, Miami time
08:49AA 863 from Washington National at the gate
17:51DL 2106 to New York JFK leaves the gate
9 h 02 apart on the timetable
The last days
AA 863 and DL 2106 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.