There are
1,318 mi
from Boynton Beach, FL to Prospect Heights, IL
That's the driving distance. It would take 1 day to go from Boynton Beach, Florida to Prospect Heights, Illinois.
The flight distance (direct flight from Boynton Beach, FL to Prospect Heights, IL) is 1,164.48 mi.
1,318 mi = 1.61 kms