There are
2,972 mi
from Boynton Beach, FL to Walnut Creek, CA
That's the driving distance. It would take 2 days 5 hours to go from Boynton Beach, Florida to Walnut Creek, California.
The flight distance (direct flight from Boynton Beach, FL to Walnut Creek, CA) is 2,553.94 mi.
2,972 mi = 3.22 kms