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Reference only — not for real-world navigation.

K3U8

Big Sandy Airport · Big Sandy

Key Facts

Essential technical summary for MSFS 2020/2024 and X-Plane.

ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
2,700 ft / 823 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 122.90 MHz (CTAF)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Big Sandy Airport (K3U8), located in Big Sandy, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 3 active runways with a maximum elevation of 2,700 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.

Airport Details

Full geographical and organizational metadata.

Full Name
Big Sandy Airport
ICAO / IATA
K3U8 / —
Municipality
Big Sandy
Country
Region
US-MT — Montana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
2,700 ft
Wikipedia

Pilot Toolbox

External charts, live tracking and weather reports.

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Runways & ILS Approach Data

Detailed dimensions and instrument landing frequencies.

Runway 06 / 24
LIGHTED
Runway Length: 3,600 ft / 1,097 m
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 78° / 258°
RWY 06 (78°)
No ILS / Visual Only
RWY 24 (258°)
No ILS / Visual Only
Runway 13 / 31
UNLIT
Runway Length: 2,975 ft / 907 m
Runway Width: 50 ft / 15 m
Surface Type: Grass
Heading: 150° / 330°
RWY 13 (150°)
No ILS / Visual Only
RWY 31 (330°)
No ILS / Visual Only
Runway 18 / 36
UNLIT
Runway Length: 1,430 ft / 436 m
Runway Width: 55 ft / 17 m
Surface Type: TURF-G
Heading: 186° / 6°
RWY 18 (186°)
No ILS / Visual Only
RWY 36 (6°)
No ILS / Visual Only

Communication Frequencies

Air traffic control and advisory channels.

CTAF CTAF
122.90 MHz

Nearby Airports

Alternative airports in the vicinity (km & nm).

KHVR
Havre City County Airport
49 km / 27 nm
KGTFILS
Great Falls International Airport
120 km / 65 nm
KLWT
Lewistown Municipal Airport
133 km / 72 nm
KCTB
Cut Bank International Airport
174 km / 94 nm
CYXH
Medicine Hat Regional Airport
211 km / 114 nm

Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026