Miles between Round Rock, TX and Cahokia, IL

There are
811 mi
from Round Rock, TX to Cahokia, IL

That's the driving distance. It would take 14 hours 54 mins to go from Round Rock, Texas to Cahokia, Illinois.

The flight distance (direct flight from Round Rock, TX to Cahokia, IL) is 700.85 mi.

811 mi = 1,305.98 kms