There are
1,171 mi
from Boynton Beach, FL to Clayton, MO
That's the driving distance. It would take 21 hours 29 mins to go from Boynton Beach, Florida to Clayton, Missouri.
The flight distance (direct flight from Boynton Beach, FL to Clayton, MO) is 1,026.79 mi.
1,171 mi = 1.61 kms