There are
1,640 mi
from Simi Valley, CA to Leawood, KS
That's the driving distance. It would take 1 day 4 hours to go from Simi Valley, California to Leawood, Kansas.
The flight distance (direct flight from Simi Valley, CA to Leawood, KS) is 1,374.35 mi.
1,640 mi = 1.61 kms