Miles between Great Falls, MT and Mill Valley, CA

There are
1,185 mi
from Great Falls, MT to Mill Valley, CA

That's the driving distance. It would take 20 hours 28 mins to go from Great Falls, Montana to Mill Valley, California.

The flight distance (direct flight from Great Falls, MT to Mill Valley, CA) is 873.03 mi.

1,185 mi = 1,907.74 kms