Reference only — not for real-world navigation.
CSJ4
Louiseville Airport · Louiseville
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
40 ft / 12 m
Transition Altitude
18,000 ft
Primary Channel
UNIC 122.80 MHz (ATF/UNICOM)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
09/27 · 3,000 ft · AsphaltUNLITFlight Planning
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Welcome to the technical flight briefing for Louiseville Airport (CSJ4), located in Louiseville, 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 40 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
Louiseville Airport
ICAO / IATA
CSJ4 / —
Municipality
Louiseville
Country
Region
CA-QC — Quebec
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
40 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 09 / 27
UNLIT
Runway Length: 3,000 ft / 914 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 72.4° / 252.4°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 72.4° / 252.4°
RWY 09 (72.4°)
No ILS / Visual Only
RWY 27 (252.4°)
No ILS / Visual Only
UNIC ATF/UNICOM
122.80 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026