Miles between Boston, MA and Thornton, CO

There are
1,972 mi
from Boston, MA to Thornton, CO

That's the driving distance. It would take 1 day 11 hours to go from Boston, Massachusetts to Thornton, Colorado.

The flight distance (direct flight from Boston, MA to Thornton, CO) is 1,761.94 mi.

1,972 mi = 1.61 kms