There are
1,946 mi
from Fontana, CA to Algonquin, IL
That's the driving distance. It would take 1 day 10 hours to go from Fontana, California to Algonquin, Illinois.
The flight distance (direct flight from Fontana, CA to Algonquin, IL) is 1,669.40 mi.
1,946 mi = 1.61 kms