There are
1,105 mi
from Hereford, TX to Prospect Heights, IL
That's the driving distance. It would take 19 hours 50 mins to go from Hereford, Texas to Prospect Heights, Illinois.
The flight distance (direct flight from Hereford, TX to Prospect Heights, IL) is 928.19 mi.
1,105 mi = 1,778.74 kms