There are
1,567 mi
from Westminster, CA to Overland Park, KS
That's the driving distance. It would take 1 day 4 hours to go from Westminster, California to Overland Park, Kansas.
The flight distance (direct flight from Westminster, CA to Overland Park, KS) is 1,342.80 mi.
1,567 mi = 2,521.58 kms