Reference only — not for real-world navigation.
KSEG
Penn Valley Airport · Selinsgrove
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
450 ft / 137 m
Transition Altitude
18,000 ft
Primary Channel
RDO 110.40 MHz (WILLIAMSPORT RDO)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
17/35 · 4,760 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Penn Valley Airport (KSEG), located in Selinsgrove, 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 450 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
Penn Valley Airport
ICAO / IATA
KSEG / SEG
Municipality
Selinsgrove
Country
Region
US-PA — Pennsylvania
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
450 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 17 / 35
LIGHTED
Runway Length: 4,760 ft / 1,451 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 158.9° / 338.9°
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 158.9° / 338.9°
RWY 17 (158.9°)
No ILS / Visual Only
RWY 35 (338.9°)
No ILS / Visual Only
A/D HARRISBURG APP/DEP
118.25 MHz
ASOS ASOS
119.28 MHz
RDO WILLIAMSPORT RDO
110.40 MHz
UNIC CTAF/UNICOM
122.70 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026