There are
2,561 mi
from Boynton Beach, FL to Rexburg, ID
That's the driving distance. It would take 1 day 22 hours to go from Boynton Beach, Florida to Rexburg, Idaho.
The flight distance (direct flight from Boynton Beach, FL to Rexburg, ID) is 2,132.74 mi.
2,561 mi = 3.22 kms