# Sidney - Richland Regional Airport (SDY / KSDY)

**Sidney - Richland Regional Airport** (IATA: SDY, ICAO: KSDY) is a medium airport in Sidney, Montana, United States. It opened in Jan 1951. It has 2 runways; the longest is 5,705 ft (1,739 m). In 2025 it handled 14 thousand passengers.

Web page: https://dromopedia.com/airports/ksdy

## At a glance

- IATA / ICAO: SDY / KSDY
- FAA: SDY
- Type: Medium airport
- Serves: Sidney, Montana, United States
- Opened: Jan 1951
- Elevation: 1,985 ft / 605 m
- Coordinates: 47.7051, -104.1944
- Runways: 2
- Longest runway: 5,705 ft / 1,739 m
- Instrument procedures: 2 approaches
- Passengers: 13,677 (2025)
- Time zone: UTC-7/-6 · America/Denver
- Wikipedia: https://en.wikipedia.org/wiki/Sidney%E2%80%93Richland_Municipal_Airport (7 languages)
- Wikidata: https://www.wikidata.org/wiki/Q7508919
- Weather station: KSDY
- Ident: KSDY

## Timeline

- Jan 1951: Sidney - Richland Regional Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 01/19 | 5,705 ft / 1,739 m | 100 ft / 31 m | Asphalt | 024° / 204° | yes |
| 11/29 | 4,024 ft / 1,227 m | 100 ft / 31 m | Asphalt | 117° / 297° | yes |

- FAA airport diagram: https://aeronav.faa.gov/d-tpp/2611/05303AD.PDF

## Passengers per year

| Year | Passengers | Source |
| --- | --- | --- |
| 2015 | 18,228 | BTS T-100 Segment |
| 2016 | 15,607 | BTS T-100 Segment |
| 2017 | 16,306 | BTS T-100 Segment |
| 2018 | 18,868 | BTS T-100 Segment |
| 2019 | 18,908 | BTS T-100 Segment |
| 2020 | 13,589 | BTS T-100 Segment |
| 2021 | 16,207 | BTS T-100 Segment |
| 2022 | 12,829 | BTS T-100 Segment |
| 2023 | 15,712 | BTS T-100 Segment |
| 2024 | 14,559 | BTS T-100 Segment |
| 2025 | 13,677 | BTS T-100 Segment |

## Routes

1 destination in 1 country. US DOT BTS T-100, 2025: passengers flown from SDY, all carriers, routes with 12 or more departures.

### Year-round (1)

- [BIL](https://dromopedia.com/airports/kbil.md) Billings Logan International Airport · United States · 244 mi / 392 km · 6,981 passengers · Cape Air

## Airlines

The figure is how many destinations each airline flies from SDY, as the routes above have them. Hubs from Wikidata.

### Passenger (1)

- 9K [Cape Air](https://dromopedia.com/airlines/cape-air) · 1

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Passengers | 14K (2025) | #2,573 of 3,974 | #615 in North America | #425 in US |
| Longest runway | 5,705 ft / 1,739 m | =5,119 of 29,858 | =1,520 in North America | =1,195 in US |
| Elevation | 1,985 ft / 605 m | #8,967 of 43,403 | #4,082 in North America | #3,093 in US |
| Age | Opened 1951 | =3,751 of 15,079 | =2,596 in North America | =2,536 in US |
| Runways | 2 | =715 of 29,978 | =435 in North America | =391 in US |

## Radio frequencies

| Type | Description | MHz |
| --- | --- | --- |
| AWOS | AWOS 3 | 119.275 |
| RDO | GREAT FALLS RDO | 123.650 |
| UNIC | CTAF/UNICOM | 122.800 |

## Nearby airports

- [XWA](https://dromopedia.com/airports/kxwa.md) Williston Basin International Airport · 44 mi / 70 km
- [GDV](https://dromopedia.com/airports/kgdv.md) Dawson Community Airport · 49 mi / 78 km
- [OLF](https://dromopedia.com/airports/kolf.md) L M Clayton Airport · 69 mi / 112 km
- [DIK](https://dromopedia.com/airports/kdik.md) Dickinson Theodore Roosevelt Regional Airport · 91 mi / 146 km

## Sources

- [BTS T-100 Segment](https://www.transtats.bts.gov/Tables.asp?QO_VQ=EEE&QO_anzr=Nv4%20Pn44vr45): US traffic: Bureau of Transportation Statistics, T-100 Segment (Public Domain (US Government))
- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/ksdy/data