AA 688 then DL 2300 at Miami
New York JFK → Miami → New York LaGuardia
Timetable, Miami time
09:13AA 688 from New York JFK at the gate
19:20DL 2300 to New York LaGuardia leaves the gate
10 h 07 apart on the timetable
The last days
AA 688 and DL 2300 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.