The U.S. aircraft register, updated daily
Airports · Montana · airport · FAA file effective October 29, 2026

Sidney-Richland Regional

SDY · KSDY · Sidney, Montana · Richland County · map

Sidney-Richland Regional is a public-use airport owned by Sidney Richland Apt Authority, 1 mile west of Sidney, Montana, 1,985 feet above sea level. It has 2 runways; the longest, 01/19, is 5,705 feet of asphalt. It has fuel (100LL avgas, Jet A) and about 28 general-aviation aircraft based on the field by the FAA's count. The FAA counts about 11,555 takeoffs and landings a year. About 7,540 passengers boarded flights here in the FAA's fiscal year 2024.

Quick answers answers refresh every morning

What is the airport code for Sidney-Richland Regional?

Its FAA code is SDY, and its ICAO code is KSDY.

Where is Sidney-Richland Regional?

It is 1 mile west of Sidney, Montana, 1,985 feet above sea level.

How long is the longest runway at Sidney-Richland Regional?

The longest of its 2 runways, 01/19, is 5,705 feet long.

Does Sidney-Richland Regional have a control tower?

No, it has no control tower.

What fuel can you buy at Sidney-Richland Regional?

The FAA's airport file lists 100LL avgas, Jet A.

Where can you fly nonstop from Sidney-Richland Regional?

Airline flights go to 1 airport, the busiest of them Billings Logan International. Every route

Are there flight schools at Sidney-Richland Regional?

One flight school, flying club or college flight programme is based within about 15 miles of it: Richland Flight Academy LLC. Compare them

Where are the nearest FAA examiners to Sidney-Richland Regional?

1 aviation medical examiner work within 50 nautical miles. See them by name

Weather and planning now, the forecast, warnings, pilot reports, winds aloft, restrictions

Fetching the weather now, the forecast, the warnings in force, pilot reports and the winds aloft for Sidney-Richland Regional…

Wind map live wind over the area, from Windy.com

Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.

The airport facts, runways, radio, fuel and services, the FAA's remarks

The airport

Codes
FAA SDY · ICAO KSDY
Kind
Airport · open to the public · publicly owned
Owner
Sidney Richland Apt Authority
Elevation
1,985 feet above sea level
Control tower
No control tower
Attended
every day, 6:00 am to 7:00 pm
Lights
runway lights see the remarks below; beacon sunset to sunrise
Fuel and services
100LL avgas, Jet A; the services card below
Notes
certified for airline service (Part 139)
On the chart
Billings sectional
Magnetic variation
9E
In the FAA's files since
January 1951

This airport's record at the FAA

Runways 2

01191129N1,000 ft
Runways drawn to scale from the FAA's positions, north up.
FAA airport diagram for Sidney-Richland Regional
The FAA's official airport diagram (taxiways, ramps, hot spots); tap to enlarge, or open the FAA's PDF.

For understanding the field, not for navigation.

RunwayLength × widthSurfaceLights
01/195,705 × 100 ftAsphalt, goodMedium-intensity lights
11/294,024 × 100 ftAsphalt, goodMedium-intensity lights
  • Runway 01: PAPI, two lights on the left
  • Runway 19: PAPI, two lights on the left, right-hand traffic pattern, tree 29 ft high 956 ft from the end
  • Runway 11: PAPI, two lights on the left, right-hand traffic pattern, road 14 ft high 489 ft from the end
  • Runway 29: PAPI, two lights on the left, road 10 ft high 489 ft from the end

Radio frequencies

Common traffic advisory (CTAF) · UNICOM122.8
Sdy and aWOS-3PT119.275
Watford City Center (remote transmitter) Low126.85

Automated weather (AWOS-3PT), by phone 406-482-7323.

Fuel and services as reported to the FAA

Fuel
100LL avgas, Jet A
Repairs
airframe and engine: major repairs
Parking
hangars, tie-downs
Oxygen
bottled oxygen (high-pressure)
Also here
air freight, crop spraying, cargo handling, charter flights, flight instruction, aircraft rental, aircraft sales

Other fields with jet fuel nearby: Watford City Municipal (38 nm east), Williston Basin International (38 nm northeast), Dawson Community Airport (42 nm southwest).

The FAA's file records what is sold and done at the field, as the airport manager reports it, not who sells it or the price; fuel sellers (FBOs) are not named in any public file. Airports selling jet fuel in Montana · avgas.

The FAA's remarks as written in the airport file, spelled out

  • Activate medium-intensity runway lights runways 01/19 and 11/29; runway end identifier lights runways 01 and 19, 11 and 29; PAPI runways 01 and 19, 11 and 29 - the common traffic frequency.
  • Flocks of water fowl in vicinity of airport.

Flights and activity in the air now, the airlines, based aircraft, takeoffs and landings

Activity now checking the volunteer receiver network…

Within ten miles

  • Looking…

Arrivals and departures, last hour

  • Looking…

From the volunteer receiver network, a few minutes behind at most; aircraft whose owners asked the FAA not to be displayed are left out; no person is named. Open the live map here.

Scheduled and charter flights from here the DOT's airline reports · August 2025 to July 2026

Airlines reported 1,681 departures from SDY in those twelve months, carrying 7,059 passengers in 15,129 seats (47% filled), to 1 destination on 1 airline.

Where toFlightsPassengersAirlines
Sidney-Richland Regional → Billings Logan International SDY–BIL1,6817,059Hyannis Air Service,...

All 1 destinations, the airlines and the aircraft, month by month

From the Bureau of Transportation Statistics' T-100 table: every segment an airline reported flying, three months in arrears. Private, business and training flights are not in it; the live picture is in the activity card.

Based aircraft as counted for the FAA, fiscal year 2024

single-engine24multi-engine4
Based aircraft, as a table
aircraft
single-engine24
multi-engine4

The FAA's count is the general-aviation aircraft kept on the field (singles, twins, business jets, helicopters) from its Terminal Area Forecast, the latest year with an actual count; airline fleets are never counted as based anywhere, so a big airline airport shows a small number. The register section below shows how many aircraft are registered to owners in town, a different measure again.

7,540passengers boarded flights here in the FAA's fiscal year 2024

Takeoffs and landings a year about 11,555, the FAA's fiscal year 2024 (October 2023 to September 2024)

air taxi and commuter4,670general aviation, travelling1,380general aviation, local5,475military30
Takeoffs and landings, as a table
a year
air taxi and commuter4,670
general aviation, travelling1,380
general aviation, local5,475
military30

Local flights stay in the traffic pattern or nearby, often practice; travelling flights arrive from or leave for somewhere else. Counts at airports without a tower are the FAA's estimates. How this compares nationally: Airports by the numbers.

Who flies and works here aircraft registered in town, the companies, the examiners nearby

Aircraft registered in Sidney from the FAA register

34 aircraft are registered to owners in Sidney, Montana: 18 piston singles, 14 piston twins, 1 weight-shift or powered parachute, 1 helicopter. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.

Companies and organisations in town with two or more aircraft:

Richland Aviation INC 11Sherry-Aire LLC 3

Individuals are counted, not named (the site's policy at this time). All aircraft registered in Montana.

Who works here from the FAA's certificate lists and the register

Flight schools, flying clubs and college flight programmes based within about 15 miles:

  • Richland Flight Academy LLC 1 aircraft · Sidney Richland Aviation is a family-owned fixed base operation (FBO) located at Sidney-Richland Regional Airport (KSDY) in Sidney, Montana.

Charter operators and airlines based in Sidney:

  • Richland Aviation, Inc. 8 aircraft on the certificate Richland Aviation is a family-owned fixed base operation (FBO) at Sidney-Richland Regional Airport in Sidney, Montana.
  • Treasure State Aerospace, LLC 1 aircraft on the certificate Treasure State Aerospace operates helicopter tours over Yellowstone National Park, VIP charter flights, utility missions including search and rescue, and a flight academy offering Part 61 pilot training.

Companies in the same town as this airport, and schools within about 15 miles of it (each placed at the main public airport of its town, or at the town's centre); not every one of them works from this field. All operators · all repair stations · all flight schools · all FBOs.

Examiners and inspectors nearby designated by the FAA · within 50 nautical miles

No pilot examiner is based within 50 nautical miles, as far as the FAA's list places them. Also nearby: 1 aviation medical examiner.

All 1 nearby, by kind, with contact details

What each kind does
  • AME: Aviation Medical Examiner: a doctor who issues the medical certificates pilots must hold.

Designees are listed with the name and contact details the FAA publishes for them on its designee locator (read October 10, 2026): the FAA lists them so that pilots, mechanics and companies can find them. Private individuals are not named, the site's policy at this time. A designee who would rather not appear here can ask us through the contact address on the About page. Each designee is placed at the main public airport of the town the FAA lists (or the nearest one to its zip code), so "nearby" means the town, not an exact address. All examiners by state.

Safety record the NTSB's cases at or near this airport

Accidents and incidents at or near this airport NTSB records · 6 since 1982, 1 fatal

2016-09-10GAA16CA492 · Cessna 170 N8335A · accident · no injuries
2012-03-05WPR12FA123 · Bellanca 7Gcbc N5542K · accident · 1 killed
2002-03-01DCA02RA024 · Boeing 747 GBNLD · incident
2001-12-06SEA02LA019 · Cessna 310 N5043J · accident · no injuries
1999-08-09SEA99LA139 · Cessna 188B N9085R · accident · no injuries
1994-01-22SEA94LA056 · Taylorcraft Bc12-D N95900 · accident · no injuries

Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English. The country as a whole: Where accidents happen.

Connections how this airport links to the rest of the register

In town
Who works here
Airlines fly from here to
Record
Around it

The whole map of how records connect · these connections as data: /graph/airport/SDY.json.

Facts from the FAA's airport file effective October 29, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 28, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.