There are
2,990 mi
from Boynton Beach, FL to San Francisco, CA
That's the driving distance. It would take 2 days 5 hours to go from Boynton Beach, Florida to San Francisco, California.
The flight distance (direct flight from Boynton Beach, FL to San Francisco, CA) is 2,572.36 mi.
2,990 mi = 3.22 kms