There are
1,752 mi
from Fullerton, CA to Opelousas, LA
That's the driving distance. It would take 1 day 6 hours to go from Fullerton, California to Opelousas, Louisiana.
The flight distance (direct flight from Fullerton, CA to Opelousas, LA) is 1,524.32 mi.
1,752 mi = 1.61 kms