Nonstop flight route between Sidney, Montana, United States and Grand Forks, North Dakota, United States:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(47°57'39"N by 97°24'3"W)
Distance from SDY to RDR:
315.38 miles (507.55 km)
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Jump to:
- About this route
- SDY Airport Information
- RDR Airport Information
- Facts about SDY
- Facts about RDR
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 315 miles (or 508 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Sidney-Richland Municipal Airport and Grand Forks Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | SDY / KSDY |
| Airport Name: | Sidney-Richland Municipal Airport |
| Location: | Sidney, Montana, United States |
| GPS Coordinates: | 47°42'24"N by 104°11'32"W |
| Area Served: | Sidney, Montana |
| Operator/Owner: | Sidney Richland Airport Authority |
| Airport Type: | Public |
| Elevation: | 1985 feet (605 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SDY |
| More Information: | SDY Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | RDR / KRDR |
| Airport Names: |
|
| Location: | Grand Forks, North Dakota, United States |
| GPS Coordinates: | 47°57'39"N by 97°24'3"W |
| View all routes: | Routes from RDR |
| More Information: | RDR Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
Facts about Grand Forks Air Force Base (RDR):
- On 3 November 1967, the Department of Defense revealed that GFAFB was one of 10 initial locations to host a Sentinel Anti-Ballistic Missile site.
- The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
- On 1 September 1958, the Strategic Air Command established the 4133d Strategic Wing at Grand Forks as part of its plan to disperse its B-52 heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) NE | Sloulin Field International Airport (ISN) | Williston, North Dakota, United States |     |
| 2 | 48.66 miles (78.31 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 3 | 69.41 miles (111.70 km) WNW | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 4 | 76.29 miles (122.77 km) NNW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 5 | 90.57 miles (145.76 km) SE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 6 | 111.04 miles (178.70 km) SSE | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 7 | 117.38 miles (188.91 km) WNW | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 8 | 118.10 miles (190.06 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 9 | 118.99 miles (191.50 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 10 | 131.42 miles (211.49 km) W | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 11 | 139.74 miles (224.89 km) ENE | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 12 | 140.05 miles (225.38 km) ENE | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 13 | 174.07 miles (280.14 km) ESE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 14 | 189.51 miles (304.99 km) N | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 15 | 191.53 miles (308.24 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,383.49 miles (16,710.57 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,297.57 miles (16,572.29 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,290.39 miles (16,560.74 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,266.41 miles (16,522.14 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,218.50 miles (16,445.05 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,203.17 miles (16,420.36 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,179.29 miles (16,381.94 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,169.42 miles (16,366.06 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 9 | 10,153.64 miles (16,340.65 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,120.11 miles (16,286.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,113.85 miles (16,276.63 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 10,100.83 miles (16,255.67 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 10,089.33 miles (16,237.15 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,078.56 miles (16,219.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,076.48 miles (16,216.49 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10.44 miles (16.81 km) E | Grand Forks International Airport (GFK) | Grand Forks, North Dakota, United States | |
| 2 | 37.05 miles (59.62 km) ESE | Crookston Municipal Airport (CKN) | Crookston, Minnesota, United States | |
| 3 | 56.67 miles (91.20 km) E | Thief River Falls Regional Airport (TVF) | Thief River Falls, Minnesota, United States | |
| 4 | 68.20 miles (109.76 km) N | Pembina Municipal Airport (PMB) | Pembina, North Dakota, United States | |
| 5 | 70.43 miles (113.35 km) W | Devils Lake Regional Airport (DVL) | Devils Lake, North Dakota, United States | |
| 6 | 76.92 miles (123.79 km) SSE | Hector International Airport (FAR) | Fargo, North Dakota, United States | |
| 7 | 92.95 miles (149.59 km) SW | Jamestown Regional Airport (JMS) | Jamestown, North Dakota, United States | |
| 8 | 105.78 miles (170.23 km) SE | Detroit Lakes Airport (DTL) | Detroit Lakes, Minnesota, United States | |
| 9 | 115.91 miles (186.54 km) NE | Warroad International Memorial Airport (RRT) | Warroad, Minnesota, United States | |
| 10 | 118.75 miles (191.11 km) ESE | Bemidji Regional Airport (BJI) | Bemidji, Minnesota, United States | |
| 11 | 124.36 miles (200.14 km) SSE | Harry Stern Airport (WAH) | Wahpeton, North Dakota, United States | |
| 12 | 129.78 miles (208.86 km) SSE | Fergus Falls Municipal Airport (FFM) | Fergus Falls, Minnesota, United States | |
| 13 | 134.85 miles (217.03 km) N | Winnipeg James Armstrong Richardson International Airport (YWG) | Winnipeg, Manitoba, Canada | |
| 14 | 138.60 miles (223.05 km) ENE | Baudette International Airport (BDE) | Baudette, Minnesota, United States | |
| 15 | 139.90 miles (225.15 km) NNW | Portage la Prairie/Southport Airport (YPG) | Portage la Prairie, Manitoba, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,503.85 miles (16,904.27 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,479.86 miles (16,865.66 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,472.61 miles (16,853.99 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,453.90 miles (16,823.87 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,427.01 miles (16,780.60 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,397.22 miles (16,732.65 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,386.62 miles (16,715.61 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,380.61 miles (16,705.93 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 10,375.61 miles (16,697.88 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,336.89 miles (16,635.57 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,276.91 miles (16,539.04 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,242.01 miles (16,482.88 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,239.13 miles (16,478.24 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,226.99 miles (16,458.70 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,211.16 miles (16,433.23 km) SE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |