There are
1,467 mi
from Simi Valley, CA to Rockwall, TX
That's the driving distance. It would take 1 day 1 hour to go from Simi Valley, California to Rockwall, Texas.
The flight distance (direct flight from Simi Valley, CA to Rockwall, TX) is 1,285.32 mi.
1,467 mi = 2,360.97 kms