Reference only — not for real-world navigation.
KJST
John Murtha Johnstown Cambria County Airport · Johnstown
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
2,284 ft / 696 m
Transition Altitude
18,000 ft
Primary Channel
TWR 125.75 MHz (TWR)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
15/33 · 7,003 ft · AsphaltLIGHTED05/23 · 4,386 ft · AsphaltLIGHTED10/28 · 3,700 ft · AsphaltUNLITFlight Planning
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Welcome to the technical flight briefing for John Murtha Johnstown Cambria County Airport (KJST), located in Johnstown, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 3 active runways with a maximum elevation of 2,284 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
John Murtha Johnstown Cambria County Airport
ICAO / IATA
KJST / JST
Municipality
Johnstown
Country
Region
US-PA — Pennsylvania
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
2,284 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 15 / 33
ILS EQUIPPEDLIGHTED
Runway Length: 7,003 ft / 2,135 m
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 144.1° / 324.1°
Runway Width: 150 ft / 46 m
Surface Type: Asphalt
Heading: 144.1° / 324.1°
RWY 15 (144.1°)
No ILS / Visual Only
RWY 33 (324.1°)
110.10 MHz
IDENT: JST | CRS: 334°
Runway 05 / 23
LIGHTED
Runway Length: 4,386 ft / 1,337 m
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 39.4° / 219.4°
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 39.4° / 219.4°
RWY 05 (39.4°)
No ILS / Visual Only
RWY 23 (219.4°)
No ILS / Visual Only
Runway 10 / 28
UNLIT
Runway Length: 3,700 ft / 1,128 m
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 87° / 267°
Runway Width: 100 ft / 30 m
Surface Type: Asphalt
Heading: 87° / 267°
RWY 10 (87°)
No ILS / Visual Only
RWY 28 (267°)
No ILS / Visual Only
ATIS ATIS
118.33 MHz
CNTR CLEVELAND CNTR
121.20 MHz
CTAF CTAF
125.75 MHz
GND GND
121.60 MHz
OPS KEYSTONE OPS ARNG
36.50 MHz
RDO ALTOONA RDO
122.65 MHz
TWR TWR
125.75 MHz
UNIC UNICOM
122.95 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026