There are
2,485 mi
from Clearwater, FL to Fountain Valley, CA
That's the driving distance. It would take 1 day 20 hours to go from Clearwater, Florida to Fountain Valley, California.
The flight distance (direct flight from Clearwater, FL to Fountain Valley, CA) is 2,112.46 mi.
2,485 mi = 3,999.42 kms