There are
646 mi
from Johnson City, TN to Algonquin, IL
That's the driving distance. It would take 12 hours 34 mins to go from Johnson City, Tennessee to Algonquin, Illinois.
The flight distance (direct flight from Johnson City, TN to Algonquin, IL) is 514.07 mi.
646 mi = 1,039.36 kms