There are
1,550 mi
from Buena Park, CA to Topeka, KS
That's the driving distance. It would take 1 day 2 hours to go from Buena Park, California to Topeka, Kansas.
The flight distance (direct flight from Buena Park, CA to Topeka, KS) is 1,286.71 mi.
1,550 mi = 1.61 kms