Miles between Boulder, CO and Marana, AZ

There are
945 mi
from Boulder, CO to Marana, AZ

That's the driving distance. It would take 16 hours 45 mins to go from Boulder, Colorado to Marana, Arizona.

The flight distance (direct flight from Boulder, CO to Marana, AZ) is 619.48 mi.

945 mi = 1,520.38 kms