Reference only — not for real-world navigation.
23S
Seeley Lake Airport · Seeley Lake
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
4,235 ft / 1,291 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
16/34 · 4,575 ft · TURF-GUNLITFlight Planning
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Welcome to the technical flight briefing for Seeley Lake Airport (23S), located in Seeley Lake, 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 4,235 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
Seeley Lake Airport
ICAO / IATA
23S / —
Municipality
Seeley Lake
Country
Region
US-MT — Montana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
4,235 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 16 / 34
UNLIT
Runway Length: 4,575 ft / 1,394 m
Runway Width: 75 ft / 23 m
Surface Type: TURF-G
Heading: —° / —°
Runway Width: 75 ft / 23 m
Surface Type: TURF-G
Heading: —° / —°
RWY 16
No ILS / Visual Only
RWY 34
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026