Miles between Napa, CA and Helena, MT

There are
1,073 mi
from Napa, CA to Helena, MT

That's the driving distance. It would take 18 hours 28 mins to go from Napa, California to Helena, Montana.

The flight distance (direct flight from Napa, CA to Helena, MT) is 774.85 mi.

1,073 mi = 1.61 kms