Miles between Nampa, ID and Billings, MT

There are
638 mi
from Nampa, ID to Billings, MT

That's the driving distance. It would take 11 hours 16 mins to go from Nampa, Idaho to Billings, Montana.

The flight distance (direct flight from Nampa, ID to Billings, MT) is 425.18 mi.

638 mi = 1,026.16 kms