Nonstop flight route between Greensboro, North Carolina, United States and Sidney, Montana, United States:
Departure Airport:
(36°5'52"N by 79°56'13"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from GSO to SDY:
1,473.28 miles (2,371.01 km)
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- About this route
- GSO Airport Information
- SDY Airport Information
- Facts about GSO
- Facts about SDY
- Map of Nearest Airports to GSO
- List of Nearest Airports to GSO
- Map of Furthest Airports from GSO
- List of Furthest Airports from GSO
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 1,473 miles (or 2,371 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 Piedmont Triad International Airport and Sidney-Richland Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | GSO / KGSO |
| Airport Name: | Piedmont Triad International Airport |
| Location: | Greensboro, North Carolina, United States |
| GPS Coordinates: | 36°5'52"N by 79°56'13"W |
| Area Served: | Greensboro, High Point, and Winston-Salem, North Carolina |
| Operator/Owner: | Piedmont Triad Airport Authority |
| Airport Type: | Public |
| Elevation: | 926 feet (282 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from GSO |
| More Information: | GSO Maps & Info |
Arrival 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 |
Facts about Piedmont Triad International Airport (GSO):
- Pitcairn Aviation, Incorporated was given the contract to fly the airmail route, the second official airmail route in the United States, and Pitcairn Aviation made the first delivery of airmail in North Carolina on May 1, 1928.
- The furthest airport from Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
- In the mid-1990s Continental Airlines developed a hub at the airport, largely to support its new Continental Lite low-fare product.
- By 1975 airport officials began to plan for a new terminal.
- Piedmont Triad International Airport (GSO) has 3 runways.
- A third runway was built to accommodate the hub operation, parallel to one of the existing ones.
- Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.
- The Cargo Terminals have expanded in the last 13 years.
Facts about Sidney-Richland Municipal Airport (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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.08 miles (25.88 km) W | Smith Reynolds Airport (INT) | Winston-Salem, North Carolina, United States |     |
| 2 | 45.17 miles (72.70 km) SW | Rowan County Airport (SRW) | Salisbury, North Carolina, United States | |
| 3 | 46.87 miles (75.42 km) NE | Danville Regional Airport (DAN) | Danville, Virginia, United States | |
| 4 | 65.34 miles (105.16 km) W | Wilkes County Airport (IKB) | North Wilkesboro, North Carolina, United States | |
| 5 | 65.43 miles (105.29 km) SW | Concord Regional Airport (USA) | Concord, North Carolina, United States | |
| 6 | 66.05 miles (106.30 km) ESE | Raleigh–Durham International Airport (RDU) | Raleigh / Durham, North Carolina, United States | |
| 7 | 66.90 miles (107.66 km) SSE | Moore County Airport (SOP) | Pinehurst / Southern Pines, North Carolina, United States | |
| 8 | 73.63 miles (118.50 km) SW | Wilgrove Air Park (QWG) | Charlotte, North Carolina, United States | |
| 9 | 77.39 miles (124.54 km) SSE | Mackall Army Airfield (HFF) | Camp Mackall, North Carolina, United States | |
| 10 | 81.01 miles (130.37 km) NNW | Virginia Tech Montgomery Executive Airport (BCB) | Blacksburg, Virginia, United States | |
| 11 | 82.38 miles (132.58 km) SE | Pope Field (POB) | Fayetteville, North Carolina, United States | |
| 12 | 82.75 miles (133.18 km) NNW | New River Valley Airport (PSK) | Dublin, Virginia, United States | |
| 13 | 83.18 miles (133.86 km) SW | Charlotte Douglas International Airport (CLT) | Charlotte, North Carolina, United States | |
| 14 | 84.86 miles (136.57 km) N | Roanoke–Blacksburg Regional Airport (ROA) | Roanoke, Virginia, United States | |
| 15 | 84.91 miles (136.65 km) WSW | Hickory Regional Airport (HKY) | Hickory, North Carolina, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,573.70 miles (18,626.03 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,552.77 miles (18,592.33 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,531.63 miles (18,558.31 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,521.16 miles (18,541.47 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 11,508.04 miles (18,520.36 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,491.78 miles (18,494.17 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,483.48 miles (18,480.82 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 8 | 11,483.10 miles (18,480.21 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,446.69 miles (18,421.62 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 10 | 11,437.05 miles (18,406.10 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 11,427.65 miles (18,390.98 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 11,423.26 miles (18,383.91 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,395.13 miles (18,338.63 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,393.55 miles (18,336.10 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,372.18 miles (18,301.71 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 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 | |