There are
899 mi
from Lawton, OK to Valparaiso, IN
That's the driving distance. It would take 16 hours 31 mins to go from Lawton, Oklahoma to Valparaiso, Indiana.
The flight distance (direct flight from Lawton, OK to Valparaiso, IN) is 777.16 mi.
899 mi = 1,447.57 kms