Miles between Boulder, CO and Somerton, AZ

There are
1,015 mi
from Boulder, CO to Somerton, AZ

That's the driving distance. It would take 19 hours 16 mins to go from Boulder, Colorado to Somerton, Arizona.

The flight distance (direct flight from Boulder, CO to Somerton, AZ) is 733.29 mi.

1,015 mi = 1.61 kms