There are
2,010 mi
from Ontario, CA to Tullahoma, TN
That's the driving distance. It would take 1 day 11 hours to go from Ontario, California to Tullahoma, Tennessee.
The flight distance (direct flight from Ontario, CA to Tullahoma, TN) is 1,780.52 mi.
2,010 mi = 3,234.76 kms