There are
1,566 mi
from Overland Park, KS to Fountain Valley, CA
That's the driving distance. It would take 1 day 3 hours to go from Overland Park, Kansas to Fountain Valley, California.
The flight distance (direct flight from Overland Park, KS to Fountain Valley, CA) is 1,341.79 mi.
1,566 mi = 2,519.53 kms