Hayes Emergency Airstrip Private
SD21 · Hayes, SD · 1,986 ft elevation · var 9E · Non-towered
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
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1953/10
- Distance from city
- 1 NE
Weather
METAR observed
Loading current weather…
TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:23 AM | 10:23Z |
| Sunrise | 05:00 AM | 11:00Z |
| Sunset | 08:32 PM | 02:32Z |
| Evening civil twilight Loggable night begins | 09:09 PM | 03:09Z |
Plan a flight from SD21
Traffic pattern
- Landing
- Rwy 14
- Pattern
- left (turns left)
- TPA
- 3,000 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 14 at 3,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 14/32
2,100 ft × 100 ft · Asphalt- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 600 ft from threshold — 24:1 slope to clear
| Runway | Length | Your margin |
|---|---|---|
| 14/32 | 2,100 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PHP · Philip | VOR-DME | 108.40 | r044° / 33.8 NM |
| PIR · Pierre | VORTAC | 112.50 | r257° / 36.5 NM |
VFR sectional
No published instrument procedures or Chart Supplement for SD21. VFR sectional link above.
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- hangars
Ownership & management
Remarks FAA
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- EMERGENCY USE ONLY
- CELL 605-222-0559
- APCH RATIO INCLUDES VEHICLE CLEARANCE OVER HWY LOCATED 450' FROM SE THR.
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 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.
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 on the Comms & NavAids tab.
What is the longest runway at SD21?
Hayes Emergency Airstrip has 1 runway; the longest is 2,100 ft. See the Runways tab 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.