There are
691 mi
from Broken Arrow, OK to Merrillville, IN
That's the driving distance. It would take 12 hours 51 mins to go from Broken Arrow, Oklahoma to Merrillville, Indiana.
The flight distance (direct flight from Broken Arrow, OK to Merrillville, IN) is 589.73 mi.
691 mi = 1,111.59 kms