Miles between Great Falls, MT and Downey, CA

There are
1,257 mi
from Great Falls, MT to Downey, CA

That's the driving distance. It would take 21 hours 8 mins to go from Great Falls, Montana to Downey, California.

The flight distance (direct flight from Great Falls, MT to Downey, CA) is 1,001.91 mi.

1,257 mi = 2,022.25 kms