DL 820 then DL 738 at JFK
Salt Lake City → New York → Los Angeles
Timetable, New York time
05:54DL 820 from Salt Lake City at the gate
15:20DL 738 to Los Angeles leaves the gate
9 h 26 apart on the timetable
Today
From the airport’s board at 23:05 New York time
05:40DL 820 reached the gate14 min early
15:15DL 738 left the gate5 min early
9 h 35 between the gates
The last days
DL 820 and DL 738 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.