Miles between Mill Valley, CA and Great Falls, MT

There are
1,186 mi
from Mill Valley, CA to Great Falls, MT

That's the driving distance. It would take 20 hours 27 mins to go from Mill Valley, California to Great Falls, Montana.

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

1,186 mi = 1,908.21 kms