Chicago Airport

Chicago, Illinois is the third-largest city in the United States and a major transportation hub for the Midwest. The city is served by two major airports, and is the main freight rail hub of North America.

Mass transit in much of the Chicago metropolitan area is managed through the Regional Transportation Authority (RTA), which was installed by referendum in 1974. The RTA provides transportation services through the funding of three subordinate agencies: the Chicago Transit Authority, Metra, and Pace.

There are several other smaller commercial airports in the Chicago area, these include:

General Mitchell International Airport in Milwaukee is also used by residents of Chicago's northern suburbs looking to avoid the congestion of the two main Chicago airports.South Bend International Airport in South Bend, Indiana is connected to downtown Chicago via a South Shore Line station.

The Chicago Transit Authority, or CTA, one of three service boards within the Regional Transportation Authority, operates the second largest public transportation system in the United States (to New York's Metropolitan Transportation Authority) and covers the City of Chicago and 40 surrounding suburbs. The CTA operates 24 hours a day and, on an average weekday, 1.6 million rides are taken on the CTA.

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