There are
947 mi
from Knoxville, TN to Mendota Heights, MN
That's the driving distance. It would take 17 hours 41 mins to go from Knoxville, Tennessee to Mendota Heights, Minnesota.
The flight distance (direct flight from Knoxville, TN to Mendota Heights, MN) is 783.23 mi.
947 mi = 1,524.50 kms