All the flights from KSLC-KJFK seem to be getting screwed up. Most of them are saying cancelled, and that very well might be. But I doubt the winds are strong enough to take you cross country in a bit over a half an hour.
flightaware.com/live/flight/DAL782
flightaware.com/live/flight/DAL1 … /KSLC/KJFK
flightaware.com/live/flight/DAL1002