There are
1,403 mi
from Simi Valley, CA to Ardmore, OK
That's the driving distance. It would take 1 day 1 hour to go from Simi Valley, California to Ardmore, Oklahoma.
The flight distance (direct flight from Simi Valley, CA to Ardmore, OK) is 1,233.84 mi.
1,403 mi = 1.61 kms