Beginnings RFD traces its history to 1917, when
Camp Grant was established by the
U.S. Army as one of the largest military training facilities in the United States. At the end of 1923, the Army closed Camp Grant as an active facility, transferring it to the
Illinois National Guard. In 1941, the facility was reactivated by the Army. During World War II, Camp Grant served as one of the largest Army induction and training centers in the United States, training medical personnel, and serving as a prisoner of war confinement center. Following the end of the war, the facility served as a separation center. In 1946, Camp Grant was shut down for the second (and final) time.
Creation of airport and transition to civilian use After World War II, Illinois adopted the Airport Authority Act; the Greater Rockford Airport Authority was created in 1946. In 1948, the Camp Grant land was officially transferred to the airport authority from the federal government. Of the 5,460 acres (plus a 6,000 acre rifle range) of Camp Grant, the airport authority acquired the western 1,500 acres of the facility, TWA flew
Boeing 727s Rockford to Chicago O'Hare for a couple years starting May 1980. McClain Airlines
Boeing 727-100s flew nonstop to Chicago O'Hare. The original
Frontier Airlines (1950-1986) Boeing 737-200s served Rockford from 1984 until late 1986 nonstop to Cedar Rapids, Madison and Milwaukee and direct to Denver when the operation was transferred to Britt Airways, which flew turboprops for a short time. For a period
Midway Airlines served Rockford with flights to Chicago Midway airport, until the airline went bankrupt in late 1991. Coleman Air Transport had a small hub at RFD in the late 1970s with
Grumman Gulfstream Is and was planning to introduce
Douglas DC-9-10 nonstop to New York
LaGuardia Airport before losing its operating certificate and going out of business.
Northwest Airlink served
Detroit on and off from the 1980s until 2001 when it pulled out for good. Scheduled passenger service ended altogether in 2001, but resumed again in 2003.
Transmeridian Airlines briefly operated a leisure-oriented
focus city at Rockford beginning in 2003. The current version of Frontier offered mainline service to
Denver briefly in 2013. It also offered several charter flights, on behalf of Apple Vacations.
United Express served
Denver from Rockford from 2006 to 2008.
Arrival of Allegiant Airlines and current service Allegiant Air began service between Rockford and
Las Vegas in November 2005 and between Rockford and
St. Petersburg-Clearwater in September 2006. in 2024/2025 Alleigant briefly has service from Rockford to Los Angeles LAX. As of early 2026 Allegiant is the sole regularly scheduled airline with flights out of Rockford, with eight locations served (Las Vegas, Phoenix/Mesa, Nashville, and in Florida Orlando/Sanford, St. Petersburg/Clearwater, Sarasota, Punta Gorda and Ft. Lauderdale.)
International Service In 2004 Rockford airport became an official US port of entry and achieved international status. Rockford has no regular airline service to foreign locations, but does have charter services that go overseas.
Apple Vacations offered scheduled flights to the vacation destinations of
Cancún,
Montego Bay, and
Punta Cana for many years, through operators such as
Norwegian Air Shuttle and
TUI Airways. International destinations direct from Rockford were suspended because of Covid-19 in 2020, but began again in January 2026, once again through Apple Vacations. These flights are offered seasonally using TUI Belgium aircraft, going to
Cancún, and
Huatulco in Mexico, as well as
Punta Cana in the Dominican Republic.
Name of airport Known for decades as the Greater Rockford Airport name changes were made starting in the 2000s. In an effort to capitalize on its location (less than from downtown Chicago and about from the outermost Chicago suburbs), the airport underwent several name changes, initially changing to the
Northwest Chicagoland Regional Airport at Rockford. When the airport achieved international status in 2004 it was renamed again, becoming the
Chicago/Rockford International Airport (the slash was removed in 2007), bringing it in line with the two original "Chicago" airports (O'Hare and Midway). In many forms of media, the airport also markets itself by its three
FAA/
IATA call letters: RFD. Today the Rockford airport is marketed to residents of Rockford and surrounding areas as an alternative to
Chicago Midway International Airport and
O'Hare International Airport in Chicago,
Mitchell International Airport in Milwaukee and
Dane County Regional Airport in Madison, Wisconsin, as well as limited service airports such as
Dubuque Regional Airport in Iowa. The airlines at Rockford often use their low fares as a selling point. Bus service from Rockford to O’Hare draws away many potential flyers that could otherwise fly out of Rockford. Some Rockford area residents consider driving their car to O’Hare a viable alternative. In 2023, the airport made headlines when 300+ migrants arrived on a flight from Texas as part of the ongoing
migrant crisis in the United States.
Rockford AirFest (Boeing 747 Dreamlifter) at the 2010
Rockford AirFestThe Rockford airport has played host to airshows in several capacities, often becoming one of the largest events in Northern Illinois. In 1959 the
Experimental Aircraft Association (EAA) moved its
annual fly-in from
Timmerman Field in Milwaukee to the Greater Rockford Airport after outgrowing the smaller Wisconsin airfield. In 1960, 1000 people attended, leading to growth each year through the 1960s. 1969 would be the final year for the EAA fly-in in Rockford, as it had outgrown the Rockford airport. For 1970, the EAA would move its annual convention/fly-in to
Wittman Regional Airport in
Oshkosh, Wisconsin, where it has been held ever since. In 1986 the Greater Rockford Airport returned to hosting large-scale air shows with the Midwest AirFest. From 1986 to 1994, the show would twice feature the
United States Air Force Thunderbirds. After an 11-year hiatus, the AirFest (rebranded as the Rockford AirFest) returned in 2005. The airshow is one of the few in the United States that has twice hosted the combination of the
United States Air Force Thunderbirds,
US Navy Blue Angels, and the
F-22 Raptor Demo Team. On December 16, 2016, Airfest announced that it would be indefinitely canceled. It stated that the airport had become too busy to hold the event. ==Facilities==