There are
1,346 mi
from Santee, CA to Lewisville, TX
That's the driving distance. It would take 23 hours 2 mins to go from Santee, California to Lewisville, Texas.
The flight distance (direct flight from Santee, CA to Lewisville, TX) is 1,156.85 mi.
1,346 mi = 2,166.59 kms