Reference only — not for real-world navigation.
KS40
Prosser Airport · Prosser
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
697 ft / 212 m
Transition Altitude
18,000 ft
Primary Channel
RDO 122.50 MHz (SEATTLE)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
07/25 · 3,450 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Prosser Airport (KS40), located in Prosser, 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 697 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
Prosser Airport
ICAO / IATA
KS40 / —
Municipality
Prosser
Country
Region
US-WA — Washington
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
697 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 07 / 25
LIGHTED
Runway Length: 3,450 ft / 1,052 m
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 90° / 270°
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 90° / 270°
RWY 07 (90°)
No ILS / Visual Only
RWY 25 (270°)
No ILS / Visual Only
RDO SEATTLE
122.50 MHz
UNIC CTAF/UNICOM
122.80 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026