Miles between Sunnyvale, CA and Great Falls, MT

There are
1,218 mi
from Sunnyvale, CA to Great Falls, MT

That's the driving distance. It would take 21 hours 1 min to go from Sunnyvale, California to Great Falls, Montana.

The flight distance (direct flight from Sunnyvale, CA to Great Falls, MT) is 886.87 mi.

1,218 mi = 1.61 kms