Where can one find a rent-a-car service in Chicago?

* Alamo: Terminal 2, Level 1 (8am-10pm)

* Avis: Terminal 2, Level 1 (8am-10pm)

* Budget: Terminal 2, Level 1 (8am-10pm)

* Dollar: Terminal 2, Level 1 (8am-10pm)

* Enterprise: Terminal 2, Level 1 (8am-10pm)

* Hertz: Terminal 2, Level 1 (8am-10pm)

* National: Terminal 2, Level 1 (8am-10pm)

* Sixt: Terminal 2, Level 1 (8am-10pm)

* Thrifty: Terminal 2, Level 1 (8am-10pm)

Midway International Airport (MDW)

* Alamo: Terminal 4 (near baggage claim) (8am-10pm)

* Avis: Terminal 4 (near baggage claim) (8am-10pm)

* Budget: Terminal 4 (near baggage claim) (8am-10pm)

* Dollar: Terminal 4 (near baggage claim) (8am-10pm)

* Enterprise: Terminal 4 (near baggage claim) (8am-10pm)

* Hertz: Terminal 4 (near baggage claim) (8am-10pm)

* National: Terminal 4 (near baggage claim) (8am-10pm)

* Sixt: Terminal 4 (near baggage claim) (8am-10pm)

* Thrifty: Terminal 4 (near baggage claim) (8am-10pm)

Downtown Chicago

* Alamo: 2113 S Michigan Ave Suite 10

* Avis: 15 W Van Buren St

* Budget: 19 S Clark St

* Dollar: 191 W Lake St

* Enterprise: 324 S Michigan Ave #100

* Hertz: 195 E Delaware Pl

* National: 859 W Ohio St

* Sixt: 95 N Jefferson St 19W,

* Thrifty: 181 W Harrison St