Miles between Port Arthur, TX and Thornton, CO

There are
1,081 mi
from Port Arthur, TX to Thornton, CO

That's the driving distance. It would take 20 hours 11 mins to go from Port Arthur, Texas to Thornton, Colorado.

The flight distance (direct flight from Port Arthur, TX to Thornton, CO) is 929.50 mi.

1,081 mi = 1,740.49 kms