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Southern Illinois Airport

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Parent: Interstate 57 Hop 4
Expansion Funnel Raw 54 → Dedup 0 → NER 0 → Enqueued 0
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Southern Illinois Airport
NameSouthern Illinois Airport
IataMWA
IcaoKMWA
FaaMWA
TypePublic
OwnerSouthern Illinois Airport Authority
City-servedMarion, Illinois
LocationWilliamson County, Illinois
Elevation-f484
WebsiteSouthern Illinois Airport
R1-number13/31
R1-length-f7,119
R1-surfaceAsphalt
R2-number18/36
R2-length-f4,001
R2-surfaceAsphalt

Southern Illinois Airport is a regional public-use airport serving Marion and the surrounding areas of southern Illinois. Located in Williamson County near the intersections of several U.S. and state highways, the airport functions as a general aviation, air taxi, and limited scheduled service facility. It supports flight training, charter operations, cargo movements, and serves as a reliever for larger hubs in the Midwest.

History

The airport was developed after World War II amid postwar expansion influenced by aviation leaders and local officials from Marion, Illinois, Williamson County, Illinois, and nearby municipalities. Early growth paralleled national trends involving the Federal Aviation Administration, the Civil Aeronautics Board, and state transportation initiatives by the Illinois Department of Transportation. During the Cold War era, regional planning commissions and the Department of Defense influenced infrastructure improvements at many U.S. airports; Southern Illinois Airport saw runway extensions and navigational aid upgrades concurrent with investments across the Midwest. In the 1970s and 1980s, economic shifts tied to the Coal Strike of 1977 and restructuring in the Appalachian coalfields indirectly affected passenger and cargo demand. Local civic leaders, including members of the Marion Chamber of Commerce and the Southern Illinois University system, advocated for aviation-linked economic development. Federal grant programs such as those administered by the Airport Improvement Program supported apron expansions and terminal renovations. In the 1990s and 2000s, partnerships with U.S. Small Business Administration initiatives and regional healthcare systems like Memorial Hospital of Carbondale spurred medevac and air ambulance operations. More recent decades have seen collaborations with workforce development organizations and economic development agencies including Southeastern Illinois Economic Development District.

Facilities and Operations

The airport features two asphalt runways, primary runway 13/31 and secondary runway 18/36, equipped with lighting systems and instrument approaches overseen by the Federal Aviation Administration. Fixed-base operators provide fuel, maintenance, and hangaring services; operators have included regional FBOs, flight schools associated with entities such as Southern Illinois University Carbondale and private aviation firms. Ground facilities accommodate corporate aircraft from companies headquartered in Marion, Illinois, Carterville, Illinois, and nearby industrial centers. The airport's air traffic services interface with the Carbondale Flight Service Station and regional air traffic control centers including Chicago Center. Cargo handling is coordinated with logistics providers and freight carriers that link to distribution hubs in St. Louis, Memphis International Airport, and Chicago O'Hare International Airport. Safety infrastructure includes ARFF vehicles, snow removal equipment procured through state grants, and security coordination with local law enforcement such as the Williamson County Sheriff's Office.

Airlines and Destinations

Scheduled commercial service has been intermittent, reflecting regional demand and the entry-exit of commuter and regional carriers. Over time, airlines that have served regional Illinois airports and could influence service patterns include legacy and regional brands like American Eagle Airlines, United Express, Delta Connection, CommutAir, Piedmont Airlines (1948–1989), and smaller carriers such as Great Lakes Airlines and Air Midwest (1965–2008). Charter operators and air ambulance providers frequently connect the airport with medical centers including Barnes-Jewish Hospital, St. Louis University Hospital, and Memorial Sloan Kettering Cancer Center via arrangements with companies in the aeromedical sector. Seasonal and ad hoc operations have linked the airport to tourist gateways and sports venues, enabling direct flights to metropolitan centers when demand warranted.

Statistics

Traffic volumes reflect a mix of general aviation movements, air taxi operations, and occasional scheduled flights. Annual operations statistics are influenced by regional economic indicators like activity at the Shawnee National Forest, energy projects in the Illinois Basin, and regional manufacturing at sites tied to corporations such as Eaton Corporation and regional suppliers. Based aircraft counts typically include single-engine, multi-engine, turbine, and rotorcraft types used by private owners, flight schools, and corporate operators. Cargo tonnage and passenger enplanement figures have fluctuated with service changes and are comparable to trends seen at peer facilities in Paducah, Kentucky, Evansville Regional Airport, and Cape Girardeau Regional Airport.

Ground Transportation and Access

Ground access to the airport is provided via U.S. Route 51, Illinois Route 13, and nearby county roads connecting to Marion Transit System stops and regional bus services. Rental car agencies, taxis, and ride-hailing providers service the terminal; corporate shuttles link the airport to businesses and institutions like Southern Illinois Healthcare and John A. Logan College. Parking facilities accommodate short-term and long-term needs, and freight access is facilitated by proximity to rail lines operated by carriers such as Union Pacific Railroad and BNSF Railway. Regional intermodal connectivity ties into highways leading to Interstate 24 and Interstate 57 for wider access to the Midwest.

Accidents and Incidents

As with many regional airports, incidents have included general aviation accidents investigated by the National Transportation Safety Board and local emergency response by agencies such as the Marion Fire Department. Notable event responses have involved light aircraft during training flights, air ambulance diversions, and weather-related runway excursions during severe storms documented by the National Weather Service. Investigations typically involve the Federal Aviation Administration and result in safety recommendations that align with national standards promulgated by the Transportation Security Administration and aviation safety boards.

Category:Airports in Illinois Category:Transportation in Williamson County, Illinois Category:Buildings and structures in Williamson County, Illinois