There are
2,966 mi
from Walnut Creek, CA to Boynton Beach, FL
That's the driving distance. It would take 2 days 5 hours to go from Walnut Creek, California to Boynton Beach, Florida.
The flight distance (direct flight from Walnut Creek, CA to Boynton Beach, FL) is 2,553.94 mi.
2,966 mi = 4,772.93 kms