Miles between Billings, MT and Diamond Bar, CA

There are
1,217 mi
from Billings, MT to Diamond Bar, CA

That's the driving distance. It would take 21 hours 23 mins to go from Billings, Montana to Diamond Bar, California.

The flight distance (direct flight from Billings, MT to Diamond Bar, CA) is 948.78 mi.

1,217 mi = 1.61 kms