What are the operating hours of KMDH?

Southern Illinois Airport operates from 00:00 to 23:59.

What is the tower frequency at KMDH?

The tower frequency at Southern Illinois Airport is 125.35, 125.35 MHz.

What fuel is available at KMDH?

Southern Illinois Airport offers 100LL, Jet A.

Does KMDH require landing permits?

Yes, landing permits are required for Southern Illinois Airport (United States).

Where is KMDH located?

Southern Illinois Airport (KMDH) is located in Carbondale/Murphysboro, United States.

What is the IATA code for KMDH?

The IATA code for Southern Illinois Airport is MDH.

How long is the runway at KMDH?

The main runway at Southern Illinois Airport (06/24) measures 1269x30m.

Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer

Southern Illinois Airport (KMDH/MDH) — Carbondale/Murphysboro, United States

Southern Illinois Airport (KMDH/MDH) serves Carbondale/Murphysboro, United States. This is a mid-sized airport with 3 runways (06/24, 18L/36R). Field elevation is 411 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.

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83% Data Complete 43 of 52 points

Missing: Contacts

Section Breakdown

Basic Info 7/7

Runways 4/4

Frequencies 4/4

Operations 2/2

Fuel 1/1

Contacts 0/2

Additional Info 3/10

Observed Activity · Sep 9

1 aircraft observed within 6 NM · busiest hour 16:00Z

2026-08-072026-09-09

Distinct ADS-B aircraft seen within 6 NM below 10,000 ft AGL per UTC day · community-feed coverage varies · not official movement totals

Data last updated: 2026-03-27

Help keep this data accurate!
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Basic Airport Information

ICAO: KMDH
Name: Southern Illinois Airport
Type: medium_airport
Category: Domestic
Latitude: 37.778099
Longitude: -89.251999
Elevation: 411 ft
Country: United States
Municipality: Carbondale/Murphysboro
IATA Code: MDH
FAA Code: N/A
FIR: N/A
Timezone: America/Chicago
Distance from City: N/A km
VFR: Yes
IFR: No

Runways

Runway 06/24

Designation: 06/24
Dimensions: 1269x30m
Surface: ASP
PCN: N/A
Lighting: Lighted
NAVAIDs: N/A
Approach Types: N/A
Remarks: N/A

Runway 18L/36R

Designation: 18L/36R
Dimensions: 1983x30m
Surface: ASP
PCN: N/A
Lighting: Lighted
NAVAIDs: N/A
Approach Types: N/A
Remarks: N/A

Runway 18R/36L

Designation: 18R/36L
Dimensions: 1066x18m
Surface: ASP
PCN: N/A
Lighting: Lighted
NAVAIDs: N/A
Approach Types: N/A
Remarks: N/A

Frequencies

Tower: 125.350, 125.350 MHz
Ground: 121.800 MHz
Operations: 122.950, 125.350 MHz
Traffic/Approach: 125.300 MHz
ATIS: 119.850 MHz

Operation Hours

Monday Open 24 hours

Tuesday Open 24 hours

Wednesday Open 24 hours

Thursday Open 24 hours

Friday Open 24 hours

Saturday Open 24 hours

Sunday Open 24 hours

Southern Illinois Airport operates 24 hours (H24). See all 24-hour airports worldwide →

Extra Hours On Request: No
Remarks: N/A

Contacts

AIS Tel: N/A
ARO Tel: N/A
MET Tel: N/A
Admin Tel: +1 618-529-1721
Health Tel: N/A
Police Tel: N/A
Authorities Tel: N/A
Website: N/A
Remarks: N/A

Slots / PPR

Slot Required: No
PPR Required: No
PPR Contact: N/A
Remarks: N/A

Fuel Information

Fuel Type: 100LL
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Fuel Type: Jet A
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Immigration

Port of Entry: No
GENDEC Required: No
GAR Required: No
Remarks: N/A

Airport Services

No services listed for this airport yet.

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United States Permit Requirements

Fast Landing: 1d

Overflight Permit: No
Landing Permit: Conditional
Overflight Lead Time: N/A
Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification

Private / GA Operations:

No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.

View Full United States Permit Details

Active NOTAMs

09/003 warning

Runway closed

TWY A BTN TWY H AND APCH END RWY 36R CLSD DUE TO CONSTRUCTION

2026-09-02 13:28:00 2026-10-19 22:00:00

08/009 warning

Runway closed

TWY A BTN TWY H AND APCH END RWY 36R CLSD CLOSED FOR CONSTRUCTION.

2026-08-31 14:07:00 2026-10-13 05:00:00

09/004 caution

Navaid/lighting unserviceable

RWY 18L ALS U/S

2026-09-06 02:06:00 2026-09-17 20:00:00

+10 more active NOTAMs

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Nearby Airports

1M7 Fulton Airport 77 NM KEIW County Memorial Airport 76 NM 3MO4 Penman Airport 82 NM KUCY Everett-Stewart Regional Airport 85 NM KM85 Gideon Memorial Airport 86 NM K34M Campbell Municipal Airport 86 NM AR93 Ark-Mo Airport 92 NM 3TN3 Wayne s World Airport 94 NM

Compare KMDH with 1M7 side by side →

Airport History

Discover the key milestones and historical events that shaped Southern Illinois Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.

Explore History

Frequently Asked Questions

What are the operating hours of KMDH?: Southern Illinois Airport operates from 00:00 to 23:59.
What is the tower frequency at KMDH?: The tower frequency at Southern Illinois Airport is 125.35, 125.35 MHz.
What fuel is available at KMDH?: Southern Illinois Airport offers 100LL, Jet A.
Does KMDH require landing permits?: Yes, landing permits are required for Southern Illinois Airport (United States).
Where is KMDH located?: Southern Illinois Airport (KMDH) is located in Carbondale/Murphysboro, United States.
What is the IATA code for KMDH?: The IATA code for Southern Illinois Airport is MDH.
How long is the runway at KMDH?: The main runway at Southern Illinois Airport (06/24) measures 1269x30m.

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