Miles between Longmont, CO and Hillsborough, CA

There are
1,245 mi
from Longmont, CO to Hillsborough, CA

That's the driving distance. It would take 21 hours 29 mins to go from Longmont, Colorado to Hillsborough, California.

The flight distance (direct flight from Longmont, CO to Hillsborough, CA) is 944.91 mi.

1,245 mi = 1.61 kms