Miles between Boulder, CO and Holladay, UT

There are
506 mi
from Boulder, CO to Holladay, UT

That's the driving distance. It would take 8 hours 48 mins to go from Boulder, Colorado to Holladay, Utah.

The flight distance (direct flight from Boulder, CO to Holladay, UT) is 348.01 mi.

506 mi = 814.31 kms