Miles between Thornton, CO and Middletown, DE

There are
1,733 mi
from Thornton, CO to Middletown, DE

That's the driving distance. It would take 1 day 7 hours to go from Thornton, Colorado to Middletown, Delaware.

The flight distance (direct flight from Thornton, CO to Middletown, DE) is 1,549.45 mi.

1,733 mi = 1.61 kms