Millennium Garages Reserve Parking Online - Chicago Illinois

The 86th Annual ACO Discounted Parking

Save money with discounted parking for the The 86th Annual ACO on Saturday, September 27, 2025! This discount is only available for advance purchases.

For convenience, we recommend our Millennium Park Garage, located at 6 South Columbus Drive, between Monroe and Randolph, with the Harris Theater directly above. Our underground garage offers easy elevator access to upper Randolph.

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Extended Stay Parking

Staying for multiple days? Reserve online below and save up to 50% on Extended Stay Parking for up to 5 days. Your stay also includes in-n-out access!

Book Your Extended Stay Here!

All Chicago Open (ACO)

The 86th Annual ACO Discounted Parking

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