Southern Illinois Airport
Daylight today(Jul 16, 2026, local time)
About 14h 32m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Southern Illinois Airport
Southern Illinois Airport is a public airport in Jackson County, Illinois, United States. It is located three nautical miles (6 km) northwest of the central business district of Carbondale and east of Murphysboro. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2025–2029, which categorized it as a regional general aviation facility.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
Live weather
KMDHLive departures & arrivals
Flight data by AeroDataBox. Times are estimates — not for navigation; confirm with the airline.
Where you can fly from here
Current scheduled routes & daily frequency by AeroDataBox. Approximate — confirm bookable schedules with the airline.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (3)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 18L / 36R | 6,506 ft / 1,983 m | 100 ft | Asp | Lighted | Open |
| 06 / 24 | 4,163 ft / 1,269 m | 100 ft | Asp | Lighted | Open |
| 18R / 36L | 3,498 ft / 1,066 m | 60 ft | Asp | Lighted | Open |
Radio frequencies (6)
| Type | Description | Frequency |
|---|---|---|
| ATIS | ATIS | 119.850 MHz |
| CNTR | KANSAS CITY CNTR | 125.300 MHz |
| CTAF | CTAF | 125.350 MHz |
| GND | GND | 121.800 MHz |
| TWR | CARBONDALE TWR | 125.350 MHz |
| UNIC | UNICOM | 122.950 MHz |
Navaids(1)
Instrument procedures & charts
Airport diagram (1)
Instrument approaches (3)
Takeoff & alternate minimums (2)
Runway hot spots (1)
Land-and-hold-short (LAHSO) (1)
Charts published by the FAA (public domain) and updated each 28-day cycle. Always fly the current, official chart. Full charts page.
Airspace in this area(1)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| CARBONDALE/MURPHYSBORO CLASS D | Class D | Controlled | GND | 2900 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Nearby airports
Great-circle distance and true bearing from Southern Illinois Airport.
Frequently asked questions
What is the ICAO code for Southern Illinois Airport?
The ICAO code for Southern Illinois Airport is KMDH, and its IATA code is MDH.
Where is Southern Illinois Airport located?
Southern Illinois Airport is medium airport located in Murphysboro, United States, at an elevation of 411 ft (125 m).
How many runways does Southern Illinois Airport have?
Southern Illinois Airport has 3 runways, the longest being 6,506 ft / 1,983 m.
What time zone is Southern Illinois Airport in?
Southern Illinois Airport is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Southern Illinois Airport?
The magnetic variation (declination) at Southern Illinois Airport is approximately 2.6° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Southern Illinois Airport?
The nearest airport to Southern Illinois Airport is Dury Estates Airport (IL71), about 5.3 nm to the ene, followed by Rendleman Airport and Adams Private Airport.
Is the information on this page suitable for flight planning?
No. Southern Illinois Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.