There are
2,486 mi
from Hayward, CA to Sevierville, TN
That's the driving distance. It would take 1 day 19 hours to go from Hayward, California to Sevierville, Tennessee.
The flight distance (direct flight from Hayward, CA to Sevierville, TN) is 2,120.59 mi.
2,486 mi = 3.22 kms