Gregory Municipal Airport - Flynn Field
9D1 · Gregory, 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 09:28 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:59 AM | 10:59Z |
| Sunrise | 06:31 AM | 11:31Z |
| Sunset | 08:56 PM | 01:56Z |
| Evening civil twilight Loggable night begins | 09:28 PM | 02:28Z |
Plan a flight from 9D1
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 13LEFT traffic
- Heading
- 128° mag · 135° true
- Dimensions
- 3,799 × 60 ft
- TPA
- 3,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (3°)
- CTAF
- 122.8
Enter the left downwind (heading 308°) on the 45° at 3,200 ft MSL (≈1,000 AGL).
More details — RWY 13
- Threshold elev
- 2,170 ft
- Markings
- nonprecision
- Threshold crossing height
- 31 ft
- TDZ elevation
- 2,170 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 3,799 ft |
Prefer one flat page? Full runway details for 9D1 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 9D1 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Also
By procedure & sector (2 frequencies)
| Frequency | Used by |
|---|---|
| 121.725 | APT REMARK 2 WITH GCO FREQ |
| 269.1 | PIERRE RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Prefer one flat list? All 9D1 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 9D1
- Coordinates
- 43.2217, -99.4033
- Elevation
- 2,174 ft MSL
- Magnetic variation
- 7E
- Sectional chart
- OMAHA
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- HURON · 122.2 · 1-800-WX-BRIEF
- NOTAM facility
- HON
- Attendance
- ALL DAWN-DUSK
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Wind indicator
- lighted
- Activated
- 1949/12
- Distance from city
- 1 SE
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- GCO AVBL ON FREQ 121.725 (4 CLICKS TO MINNEAPOLIS CENTER) — Chart Supplement ↗
Runway lighting aids — 13: 2-light PAPI (left) · 31: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, Jet A
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MINOR
- Powerplant service
- MINOR
- Parking
- tiedowns
- Other services
- Agricultural, Instruction
Ownership & management 2 contacts
Remarks FAA · 5 notes
General
- TELEPHONE AVBL.
- GCO AVBL ON FREQ 121.725 (4 CLICKS TO MINNEAPOLIS CENTER)
- FOR CD IF UNA VIA GCO CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Lighting
- ACTVT MIRL RY 13/31 & PAPI RYS 13 & 31 - CTAF.
Obstructions
- CONC PLANT LOCATED APROPLY 1282 FT OFF END OF RWY 31.
Nearby airports
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Also nearby: 1D3 Platte Municipal Airport (27 NM) · 9V9 Chamberlain Municipal Airport (33 NM) · SD44 Cook Field (34 NM) · 6A6 Kimball Municipal Airport (37 NM) · 8D8 Lake Andes Municipal Airport (38 NM)
About 9D1
Gregory Municipal Airport - Flynn Field (9D1) is an airport in Gregory, SD, at 2,174 ft MSL. It has 1 runway, the longest 3,799 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 9D1, refreshed from the Aviation Weather Center and FAA NASR.
Does 9D1 have a control tower?
No. Gregory Municipal Airport - Flynn Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 9D1?
Gregory Municipal Airport - Flynn Field has 1 runway; the longest is 3,799 ft. See the Runways section for headings, surface, and lighting.
Where is 9D1?
Gregory Municipal Airport - Flynn Field is in Gregory, SD, at an elevation of 2,174 ft MSL. Coordinates: 43.2217, -99.4033.
Fly out of 9D1 often?
Save 9D1 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 9D1 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.