Reference only — not for real-world navigation.
4F1
Westport Airport / Keystone Airpark · Westport
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
900 ft / 274 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
03/21 · 2,900 ft · ASPH-GLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Westport Airport / Keystone Airpark (4F1), located in Westport, 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 900 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
Westport Airport / Keystone Airpark
ICAO / IATA
4F1 / —
Municipality
Westport
Country
Region
US-OK — Oklahoma
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
900 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 03 / 21
LIGHTED
Runway Length: 2,900 ft / 884 m
Runway Width: 42 ft / 13 m
Surface Type: ASPH-G
Heading: —° / 281.2°
Runway Width: 42 ft / 13 m
Surface Type: ASPH-G
Heading: —° / 281.2°
RWY 03
No ILS / Visual Only
RWY 21 (281.2°)
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026