Miles between Thornton, CO and Port Arthur, TX

There are
1,083 mi
from Thornton, CO to Port Arthur, TX

That's the driving distance. It would take 20 hours 16 mins to go from Thornton, Colorado to Port Arthur, Texas.

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

1,083 mi = 1.61 kms