There are
1,074 mi
from Antioch, CA to Kalispell, MT
That's the driving distance. It would take 21 hours 18 mins to go from Antioch, California to Kalispell, Montana.
The flight distance (direct flight from Antioch, CA to Kalispell, MT) is 798.49 mi.
1,074 mi = 1,728.59 kms