Miles between Boulder, CO and Swansea, IL

There are
883 mi
from Boulder, CO to Swansea, IL

That's the driving distance. It would take 15 hours 43 mins to go from Boulder, Colorado to Swansea, Illinois.

The flight distance (direct flight from Boulder, CO to Swansea, IL) is 822.73 mi.

883 mi = 1,421.51 kms