There are
2,464 mi
from Walnut Creek, CA to Knoxville, TN
That's the driving distance. It would take 1 day 19 hours to go from Walnut Creek, California to Knoxville, Tennessee.
The flight distance (direct flight from Walnut Creek, CA to Knoxville, TN) is 2,096.27 mi.
2,464 mi = 3,964.67 kms