There are
623 mi
from Huntsville, AL to Algonquin, IL
That's the driving distance. It would take 12 hours 3 mins to go from Huntsville, Alabama to Algonquin, Illinois.
The flight distance (direct flight from Huntsville, AL to Algonquin, IL) is 521.94 mi.
623 mi = 1,002.47 kms