There are
2,148 mi
from Knoxville, TN to Rancho Cucamonga, CA
That's the driving distance. It would take 1 day 13 hours to go from Knoxville, Tennessee to Rancho Cucamonga, California.
The flight distance (direct flight from Knoxville, TN to Rancho Cucamonga, CA) is 1,899.89 mi.
2,148 mi = 3.22 kms