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Reference only — not for real-world navigation.

KEKS

Ennis Big Sky Airport · Ennis

Key Facts

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

ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
5,423 ft / 1,653 m
Transition Altitude
18,000 ft
Primary Channel
UNIC 122.80 MHz (CTAF/UNICOM)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
16/34 · 6,600 ft · AsphaltLIGHTED
Flight Planning
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Welcome to the technical flight briefing for Ennis Big Sky Airport (KEKS), located in Ennis, 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 5,423 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
Ennis Big Sky Airport
ICAO / IATA
KEKS / —
Municipality
Ennis
Country
Region
US-MT — Montana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
5,423 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 16 / 34
LIGHTED
Runway Length: 6,600 ft / 2,012 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 176.6° / 356.6°
RWY 16 (176.6°)
No ILS / Visual Only
RWY 34 (356.6°)
No ILS / Visual Only

Communication Frequencies

Air traffic control and advisory channels.

UNIC CTAF/UNICOM
122.80 MHz

Nearby Airports

Alternative airports in the vicinity (km & nm).

KBZNILS
Bozeman Yellowstone International Airport
68 km / 37 nm
KWYSILS
Yellowstone Airport
77 km / 42 nm
KBTMILS
Bert Mooney Airport
101 km / 54 nm
KLVM
Mission Field
105 km / 57 nm
KHLNILS
Helena Regional Airport
151 km / 81 nm

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