There are
2,993 mi
from Deerfield Beach, FL to San Mateo, CA
That's the driving distance. It would take 2 days 6 hours to go from Deerfield Beach, Florida to San Mateo, California.
The flight distance (direct flight from Deerfield Beach, FL to San Mateo, CA) is 2,570.97 mi.
2,993 mi = 3.22 kms