Chicago/Aurora Municipal Airport is a public airport opened in April 1966, located in the village of Sugar Grove, Illinois, United States, 8 miles (13 km) west of the city of Aurora, both in Kane County. The airport is owned and operated by the City of Aurora. It is 50 miles (80 km) west of Chicago and is designated as a reliever airport for Chicago's O'Hare and Midway airports.

Aurora is a city in northeastern Illinois, United States. Located primarily in DuPage and Kane counties along the Fox River, it is the second-most populous city in Illinois, after Chicago, and the 144th-most populous city in the U.S. The population was 180,542 at the 2020 census.