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Aviation companies in Illinois

Aviation businesses listed in Illinois: charter, maintenance, training, parts and more.

145 companies across 39 categoriesPage 1 of 7Updated

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Companies in Illinois

Showing 1–24 of 145Featured first

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Aviation companies in Illinois

145 companies across 39 categories. Updated 23 October 2026.

Chicago is one of the main airline hubs in the United States. O'Hare International is a hub for both United Airlines, which is headquartered in Chicago, and American Airlines, while Midway serves as a large Southwest Airlines base. Outside the city, general aviation airports across the state support flight training, corporate flying and aircraft services. Operations are regulated by the FAA.

We list 83 companies in Illinois. The largest groups are flight schools in Illinois (28), Chicago airport chauffeur services (8) and aviation attorneys (7), followed by aircraft financing (6), aircraft management (5) and aircraft insurance (5).

Companies in the directory

Many of the state's flight schools operate from smaller airports in the Chicago suburbs and downstate, away from O'Hare's airspace. To compare programs nationally, read our guide to the best flight schools in the USA. Neighbouring listings include aviation companies in Indiana, Wisconsin and Missouri.