Reference only — not for real-world navigation.
KOSH
Wittman Regional Airport · Oshkosh
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
808 ft / 246 m
Transition Altitude
18,000 ft
Primary Channel
TWR 118.50 MHz (OSHKOSH TWR)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Wittman Regional Airport (KOSH), located in Oshkosh, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 4 active runways with a maximum elevation of 808 ft. Instrument approaches (IFR) are supported with verified ILS frequencies and identifiers for precision landings.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Wittman Regional Airport
ICAO / IATA
KOSH / OSH
Municipality
Oshkosh
Country
Region
US-WI — Wisconsin
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
808 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 18 / 36
ILS EQUIPPEDLIGHTED
Runway Length: 8,002 ft / 2,439 m
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 180.5° / 0.5°
Runway Width: 150 ft / 46 m
Surface Type: Concrete
Heading: 180.5° / 0.5°
RWY 18 (180.5°)
No ILS / Visual Only
RWY 36 (0.5°)
110.50 MHz
IDENT: OSH | CRS: 4°
Runway 9 / 27
LIGHTED
Runway Length: 6,178 ft / 1,883 m
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 91° / 271°
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 91° / 271°
RWY 9 (91°)
No ILS / Visual Only
RWY 27 (271°)
No ILS / Visual Only
Runway 5 / 23
UNLIT
Runway Length: 3,424 ft / 1,044 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 45° / 225°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 45° / 225°
RWY 5 (45°)
No ILS / Visual Only
RWY 23 (225°)
No ILS / Visual Only
Runway 13 / 31
UNLIT
Runway Length: 3,060 ft / 933 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 129.4° / 309.4°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 129.4° / 309.4°
RWY 13 (129.4°)
No ILS / Visual Only
RWY 31 (309.4°)
No ILS / Visual Only
ATIS ATIS
125.90 MHz
CNTR CHICAGO CNTR
127.00 MHz
CTAF CTAF
118.50 MHz
GND GND
121.90 MHz
RDO GREEN BAY RDO
122.25 MHz
TWR OSHKOSH TWR
118.50 MHz
UNIC UNICOM
122.95 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026