Reference only — not for real-world navigation.
CNY4
Alliston Airport · Alliston
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
720 ft / 219 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 123.20 MHz ()
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
18/36 · 2,300 ft · TURF/SNOWLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Alliston Airport (CNY4), located in Alliston, Canada. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 720 ft. Please note that this field primarily supports VFR and visual approach procedures.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
Alliston Airport
ICAO / IATA
CNY4 / —
Municipality
Alliston
Country
Region
CA-ON — Ontario
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
720 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 18 / 36
LIGHTED
Runway Length: 2,300 ft / 701 m
Runway Width: 50 ft / 15 m
Surface Type: TURF/SNOW
Heading: —° / —°
Runway Width: 50 ft / 15 m
Surface Type: TURF/SNOW
Heading: —° / —°
RWY 18
No ILS / Visual Only
RWY 36
No ILS / Visual Only
CTAF
123.20 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026