There are
2,664 mi
from Knoxville, TN to Eureka, CA
That's the driving distance. It would take 1 day 23 hours to go from Knoxville, Tennessee to Eureka, California.
The flight distance (direct flight from Knoxville, TN to Eureka, CA) is 2,185.75 mi.
2,664 mi = 3.22 kms