Sidney - Richland Regional Airport
SDY · KSDY · Sidney, MT · 1,985 ft elevation · var 9E · Non-towered
Airport information
- ICAO / IATA
- KSDY / SDY
- Coordinates
- 47.7051, -104.1944
- Elevation
- 1,985 ft MSL
- Magnetic variation
- 9E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3PT · 119.275 · ☎ 406-482-7323
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 1-800-WX-BRIEF
- NOTAM facility
- SDY
- Attendance
- ALL 0600-1900
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- FAR 139 class
- III A
- Activated
- 1951/01
- Distance from city
- 1 W
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night 2026-06-22
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:18 AM | 10:18Z |
| Sunrise | 04:59 AM | 10:59Z |
| Sunset | 08:59 PM | 02:59Z |
| Evening civil twilight Loggable night begins | 09:40 PM | 03:40Z |
Plan a flight from KSDY
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MIRL RYS 01/19 & 11/29; REIL RYS 01 & 19, 11 & 29; PAPI RYS 01 & 19, 11 & 29 - CTAF. on 122.8 — Chart Supplement ↗
Runway lighting aids — 01: 2-light PAPI (left) · 19: 2-light PAPI (left) · 11: 2-light PAPI (left) · 29: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 01 · 015°
- Pattern
- left (turns left)
- TPA
- 3,000 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 01 at 3,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 01/19
5,705 ft × 100 ft · Asphalt (Good)- Heading
- 015° mag · 24° true
- Threshold elev
- 1,982 ft
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Threshold crossing height
- 33 ft
- TDZ elevation
- 1,985 ft
- Declared TORA/TODA/ASDA/LDA
- 5,705 / 5,705 / 5,705 / 5,705 ft
- End lights
- REIL
- Heading
- 195° mag · 204° true
- Threshold elev
- 1,981 ft
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Right
- Approach obstacle
- Tree, 29 ft, 956 ft from threshold, 0 ft B of centerline — 26:1 slope to clear
- Threshold crossing height
- 41 ft
- TDZ elevation
- 1,981 ft
- Declared TORA/TODA/ASDA/LDA
- 5,705 / 5,705 / 5,705 / 5,705 ft
- End lights
- REIL
Runway 11/29
4,024 ft × 100 ft · Asphalt (Good)- Heading
- 108° mag · 117° true
- Threshold elev
- 1,981 ft
- Markings
- basic
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Right
- Approach obstacle
- Road, 14 ft, 489 ft from threshold — 20:1 slope to clear
- Threshold crossing height
- 40 ft
- TDZ elevation
- 1,981 ft
- Declared TORA/TODA/ASDA/LDA
- 4,023 / 4,023 / 4,023 / 4,023 ft
- End lights
- REIL
- Heading
- 288° mag · 297° true
- Threshold elev
- 1,967 ft
- Markings
- basic
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Approach obstacle
- Road, 10 ft, 489 ft from threshold — 29:1 slope to clear
- Threshold crossing height
- 22 ft
- TDZ elevation
- 1,981 ft
- Declared TORA/TODA/ASDA/LDA
- 4,023 / 4,023 / 4,023 / 4,023 ft
- End lights
- REIL
| Runway | Length | Your margin |
|---|---|---|
| 01/19 | 5,705 ft | |
| 11/29 | 4,024 ft |
Communication frequencies
Tower & ground · “Sidney”
| ASOS/AWOS | 119.275 |
| CTAF | 122.8 |
| UNICOM | 122.8 |
| Flight service | 122.3 · 126.85 (LOW) |
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 305.2 | WATFORD CITY RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| ISN · Williston | VORTAC | 116.30 | r197° / 37.4 NM |
Airport diagram
Open PDF ↗Preview diagram
Procedures at a glance
Approaches2
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A
- Bottled oxygen
- HIGH
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Air freight, Agricultural, Cargo, Charter, Instruction, Rental, Aircraft sales
Ownership & management
Remarks FAA
- FOR ARPT CONDITIONS, CTC ARPT MGT - 406-480-1820. SFC CONDITIONS UNMONITORED 0400-1300Z++
- FLOCKS OF WATER FOWL IN VICINITY OF ARPT.
- FOR CD IF UNA TO CTC ON FSS FREQ, CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT MIRL RYS 01/19 & 11/29; REIL RYS 01 & 19, 11 & 29; PAPI RYS 01 & 19, 11 & 29 - CTAF.
- ON CALL 24 HOURS A DAY
- OR 406-480-1820
- PCR VALUE: 180/F/D/Y/T
- PCR VALUE: 211/F/D/Y/T
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 KSDY 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 KSDY
Sidney - Richland Regional Airport (SDY · KSDY) is an airport in Sidney, MT, at 1,985 ft MSL. It has 2 runways, the longest 5,705 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KSDY, refreshed from the Aviation Weather Center and FAA NASR.
Does KSDY have a control tower?
No. Sidney - Richland Regional Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at KSDY?
Sidney - Richland Regional Airport has 2 runways; the longest is 5,705 ft. See the Runways tab for headings, surface, and lighting.
Where is KSDY?
Sidney - Richland Regional Airport is in Sidney, MT, at an elevation of 1,985 ft MSL. Coordinates: 47.7051, -104.1944.
Fly out of KSDY often?
Save KSDY 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.