There are
1,056 mi
from Conroe, TX to Algonquin, IL
That's the driving distance. It would take 20 hours 1 min to go from Conroe, Texas to Algonquin, Illinois.
The flight distance (direct flight from Conroe, TX to Algonquin, IL) is 910.23 mi.
1,056 mi = 1,699.25 kms