There are
2,014 mi
from Boynton Beach, FL to Thornton, CO
That's the driving distance. It would take 1 day 12 hours to go from Boynton Beach, Florida to Thornton, Colorado.
The flight distance (direct flight from Boynton Beach, FL to Thornton, CO) is 1,700.58 mi.
2,014 mi = 3.22 kms