There are
2,796 mi
from Riverside, CA to Massapequa Park, NY
That's the driving distance. It would take 2 days 1 hour to go from Riverside, California to Massapequa Park, New York.
The flight distance (direct flight from Riverside, CA to Massapequa Park, NY) is 2,432.96 mi.
2,796 mi = 4,499.09 kms