There are
648 mi
from Fayetteville, AR to Prospect Heights, IL
That's the driving distance. It would take 12 hours 22 mins to go from Fayetteville, Arkansas to Prospect Heights, Illinois.
The flight distance (direct flight from Fayetteville, AR to Prospect Heights, IL) is 533.55 mi.
648 mi = 1,043.50 kms