Airport information
- FAA LID
- 3Y7
- Coordinates
- 45.3898, -101.4377
- Elevation
- 2,398 ft MSL
- Magnetic variation
- 10E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- HURON
- NOTAM facility
- HON
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Activated
- 1949/11
- Distance from city
- 0 SW
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:19 AM | 10:19Z |
| Sunrise | 04:57 AM | 10:57Z |
| Sunset | 08:38 PM | 02:38Z |
| Evening civil twilight Loggable night begins | 09:16 PM | 03:16Z |
Plan a flight from 3Y7
Night operations
- Airport lighting
- SS-SR
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 13 · 130°
- Pattern
- left (turns left)
- TPA
- 3,400 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 13 at 3,400 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 13/31
3,009 ft × 150 ft · Turf (Fair)- Heading
- 130° mag · 140° true
- Threshold elev
- 2,386 ft
- Traffic pattern
- Left
- Approach obstacle
- Trees, 46 ft, 940 ft from threshold, 0 ft B of centerline — 20:1 slope to clear
- Heading
- 310° mag · 320° true
- Threshold elev
- 2,383 ft
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 3,009 ft |
Communication frequencies
Tower & ground
| CTAF | 122.9 |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| DPR · Dupree | VORTAC | 116.80 | r022° / 22.1 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
Remarks FAA
- RWY CLSD DRG WINTER MONTHS.
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- MKD WITH WHITE/BLACK CONES.
- MKD WITH WHITE/BLACK CONES.
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 3Y7 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About 3Y7
Isabel Municipal Airport (3Y7) is an airport in Isabel, SD, at 2,398 ft MSL. It has 1 runway, the longest 3,009 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3Y7, refreshed from the Aviation Weather Center and FAA NASR.
Does 3Y7 have a control tower?
No. Isabel Municipal Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3Y7?
Isabel Municipal Airport has 1 runway; the longest is 3,009 ft. See the Runways tab for headings, surface, and lighting.
Where is 3Y7?
Isabel Municipal Airport is in Isabel, SD, at an elevation of 2,398 ft MSL. Coordinates: 45.3898, -101.4377.
Fly out of 3Y7 often?
Save 3Y7 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.