There are
1,388 mi
from Lewisville, TX to Oceanside, CA
That's the driving distance. It would take 23 hours 51 mins to go from Lewisville, Texas to Oceanside, California.
The flight distance (direct flight from Lewisville, TX to Oceanside, CA) is 1,177.78 mi.
1,388 mi = 1.61 kms