There are
2,487 mi
from Knoxville, TN to Pacifica, CA
That's the driving distance. It would take 1 day 20 hours to go from Knoxville, Tennessee to Pacifica, California.
The flight distance (direct flight from Knoxville, TN to Pacifica, CA) is 2,122.07 mi.
2,487 mi = 3.22 kms