There are
2,948 mi
from Boynton Beach, FL to Post Falls, ID
That's the driving distance. It would take 2 days 4 hours to go from Boynton Beach, Florida to Post Falls, Idaho.
The flight distance (direct flight from Boynton Beach, FL to Post Falls, ID) is 2,468.02 mi.
2,948 mi = 3.22 kms