There are
2,406 mi
from Kalispell, MT to Peekskill, NY
That's the driving distance. It would take 1 day 19 hours to go from Kalispell, Montana to Peekskill, New York.
The flight distance (direct flight from Kalispell, MT to Peekskill, NY) is 2,014.12 mi.
2,406 mi = 3,872.18 kms