Chicago Rockford International Airport — Chicago/Rockford, United States

Chicago Rockford International Airport serves the Rockford area in northern Illinois and functions as a significant cargo and air freight hub in addition to limited passenger service. RFD has grown substantially as a UPS air cargo hub and handles overflow and low-cost carrier passenger traffic for the greater Chicago metropolitan area, offering an alternative to the more congested O'Hare and Midway airports. The airport also supports general aviation, flight training, and some military and aerospace-related activity given its long runways and available capacity. RFD's dual identity as both a budget-friendly regional passenger gateway and a major logistics hub makes it an important economic asset for the Rockford region.