Miles between Thornton, CO and Big Spring, TX

There are
663 mi
from Thornton, CO to Big Spring, TX

That's the driving distance. It would take 11 hours 56 mins to go from Thornton, Colorado to Big Spring, Texas.

The flight distance (direct flight from Thornton, CO to Big Spring, TX) is 561.19 mi.

663 mi = 1,066.22 kms