Miles between Thornton, CO and Casper, WY

There are
268 mi
from Thornton, CO to Casper, WY

That's the driving distance. It would take 4 hours 32 mins to go from Thornton, Colorado to Casper, Wyoming.

The flight distance (direct flight from Thornton, CO to Casper, WY) is 218.53 mi.

268 mi = 432.06 kms