Reference only — not for real-world navigation.
C66
Monmouth Municipal Airport · Monmouth
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
753 ft / 230 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
02/20 · 2,899 ft · ASPH-GLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Monmouth Municipal Airport (C66), located in Monmouth, United States. 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 753 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
Monmouth Municipal Airport
ICAO / IATA
C66 / —
Municipality
Monmouth
Country
Region
US-IL — Illinois
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
753 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 02 / 20
LIGHTED
Runway Length: 2,899 ft / 884 m
Runway Width: 60 ft / 18 m
Surface Type: ASPH-G
Heading: 23° / 203°
Runway Width: 60 ft / 18 m
Surface Type: ASPH-G
Heading: 23° / 203°
RWY 02 (23°)
No ILS / Visual Only
RWY 20 (203°)
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026