There are
2,710 mi
from Kennewick, WA to Peekskill, NY
That's the driving distance. It would take 2 days to go from Kennewick, Washington to Peekskill, New York.
The flight distance (direct flight from Kennewick, WA to Peekskill, NY) is 2,251.14 mi.
2,710 mi = 4,360.70 kms