Hayes Emergency Airstrip Private
SD21 · Hayes, SD · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:38 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:01 AM | 11:01Z |
| Sunrise | 05:34 AM | 11:34Z |
| Sunset | 08:05 PM | 02:05Z |
| Evening civil twilight Loggable night begins | 08:38 PM | 02:38Z |
Plan a flight from SD21
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 14LEFT traffic
- Heading
- 131° mag · 140° true
- Dimensions
- 2,100 × 100 ft
- TPA
- 3,000 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
Enter the left downwind (heading 311°) on the 45° at 3,000 ft MSL (≈1,000 AGL).
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
| Runway | Length | Your margin |
|---|---|---|
| 14/32 | 2,100 ft |
Prefer one flat page? Full runway details for SD21 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the SD21 kneeboard →
Comms & NavAids
Nearby navigation aids
PHP 115.55 · PIR 113.75
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| PHP · Philip | VOR/DME | 115.55 · 102Y | Low | r044° / 33.8 NM |
| PIR · Pierre | VORTAC | 113.75 · 84Y | Low | r257° / 36.6 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for SD21 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- SD21
- Coordinates
- 44.3749, -101.0143
- Elevation
- 1,986 ft MSL
- Magnetic variation
- 9E
- Sectional chart
- CHEYENNE
- Airport use
- Private
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- HURON · 122.2 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1953/10
- Distance from city
- 1 NE
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- hangars
Ownership & management 2 contacts
Remarks FAA · 4 notes
General
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- EMERGENCY USE ONLY
Obstructions
- APCH RATIO INCLUDES VEHICLE CLEARANCE OVER HWY LOCATED 450' FROM SE THR.
Contact
- CELL 605-222-0559
Nearby airports
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Also nearby: SD57 W L Thompson Airport (private) (16 NM) · 8F6 Murdo Municipal Airport (34 NM) · 84D Cheyenne Eagle Butte Airport (38 NM) · 5V8 Kadoka Municipal Airport (39 NM)
About SD21
Hayes Emergency Airstrip (SD21) is an airport in Hayes, SD, at 1,986 ft MSL. It has 1 runway, the longest 2,100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for SD21, refreshed from the Aviation Weather Center and FAA NASR.
Does SD21 have a control tower?
No. Hayes Emergency Airstrip is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at SD21?
Hayes Emergency Airstrip has 1 runway; the longest is 2,100 ft. See the Runways section for headings, surface, and lighting.
Where is SD21?
Hayes Emergency Airstrip is in Hayes, SD, at an elevation of 1,986 ft MSL. Coordinates: 44.3749, -101.0143.
Fly out of SD21 often?
Save SD21 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.
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 SD21 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.