DL 336 then DL 2751 at JFK
Denver → New York → Detroit
Timetable, New York time
12:47DL 336 from Denver at the gate
12:59DL 2751 to Detroit leaves the gate
12 min apart on the timetable
Today
From the airport’s board at 06:17 New York time
13:13DL 336 expected at the gate26 min late
12:59DL 2751 due to leave, no estimate yet
−14 min between the gates, on these times
The last days
DL 336 and DL 2751 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.