Miles between Boulder, CO and Antioch, CA

There are
1,218 mi
from Boulder, CO to Antioch, CA

That's the driving distance. It would take 21 hours 7 mins to go from Boulder, Colorado to Antioch, California.

The flight distance (direct flight from Boulder, CO to Antioch, CA) is 897.19 mi.

1,218 mi = 1.61 kms