Airport information
- FAA LID
- 4U9
- Coordinates
- 44.7357, -112.7200
- Elevation
- 6,007 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- GREAT FALLS
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1944/02
- Distance from city
- 1 NW
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:08 AM | 11:08Z |
| Sunrise | 05:45 AM | 11:45Z |
| Sunset | 09:20 PM | 03:20Z |
| Evening civil twilight Loggable night begins | 09:57 PM | 03:57Z |
Loggable night (§1.1)
09:57 PM → 05:08 AM
Night currency (§61.57)
10:20 PM → 04:45 AM
Plan a flight from 4U9
Runway 14/32
7,000 ft × 70 ft · Asphalt (Excellent) 14
- Heading
- 143° mag · 159° true
- Markings
- basic
- VGSI
- 2-light PAPI (left) (3.5°)
- Traffic pattern
- Left
32
- Heading
- 323° mag · 339° true
- Markings
- basic
- Traffic pattern
- Left
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.9 |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| DLN · Dillon | VOR-DME | 113.00 | r175° / 31.7 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Owner
HAYAK AIRBASE LLC
PO BOX 164, LIMA, MT
406-276-3340
Manager
MIKE MARSH
PO BOX 164, LIMA, MT
406-276-3340
Remarks FAA
- SNOW REMOVAL IRREGULAR.
- DEER ON & INVOF ARPT.
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT MIRL RY 14/32 & PAPI RY 14 - CTAF.
- LARGE CRACKS WITH PROTRUDING WEEDS THROUGHOUT RY SFC.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 4U9 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.