Miles between Round Rock, TX and Zion, IL

There are
1,139 mi
from Round Rock, TX to Zion, IL

That's the driving distance. It would take 21 hours 9 mins to go from Round Rock, Texas to Zion, Illinois.

The flight distance (direct flight from Round Rock, TX to Zion, IL) is 988.15 mi.

1,139 mi = 1.61 kms