WN 3509 then DL 960 at LAX
Kansas City → Los Angeles → New York JFK
Timetable, Los Angeles time
12:15WN 3509 from Kansas City at the gate
21:15DL 960 to New York JFK leaves the gate
9 h apart on the timetable
The last days
WN 3509 and DL 960 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.