Nonstop flight route between Sidney, Montana, United States and Greymouth, New Zealand:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(42°27'42"S by 171°11'23"E)
Distance from SDY to GMN:
8,078.68 miles (13,001.34 km)
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Jump to:
- About this route
- SDY Airport Information
- GMN Airport Information
- Facts about SDY
- Facts about GMN
- 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 GMN
- List of Nearest Airports to GMN
- Map of Furthest Airports from GMN
- List of Furthest Airports from GMN
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Greymouth Airport (GMN), Greymouth, New Zealand would travel a Great Circle distance of 8,079 miles (or 13,001 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 large distance between Sidney-Richland Municipal Airport and Greymouth Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Sidney-Richland Municipal Airport and Greymouth Airport. You'll see that it will travel the same route of the red line on this map!
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: | GMN / NZGM |
| Airport Name: | Greymouth Airport |
| Location: | Greymouth, New Zealand |
| GPS Coordinates: | 42°27'42"S by 171°11'23"E |
| Operator/Owner: | Grey District Council |
| Airport Type: | Public |
| Elevation: | 14 feet (4 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GMN |
| More Information: | GMN 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 (SDY) has 2 runways.
- 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.
- 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.
Facts about Greymouth Airport (GMN):
- The furthest airport from Greymouth Airport (GMN) is Vigo Airport (VGO), which is nearly antipodal to Greymouth Airport (meaning Greymouth Airport is almost on the exact opposite side of the Earth from Vigo Airport), and is located 12,418 miles (19,985 kilometers) away in Vigo, Galicia, Spain.
- The closest airport to Greymouth Airport (GMN) is Hokitika Airport (HKK), which is located 20 miles (33 kilometers) SSW of GMN.
- Because of Greymouth Airport's relatively low elevation of 14 feet, planes can take off or land at Greymouth 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.
- Greymouth Airport (GMN) currently has only 1 runway.
| 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 | 20.28 miles (32.64 km) SSW | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 2 | 53.86 miles (86.68 km) NNE | Westport Airport (WSZ) | Westport, New Zealand | |
| 3 | 90.98 miles (146.42 km) SW | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 4 | 98.21 miles (158.06 km) SE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 5 | 104.19 miles (167.68 km) SSE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 6 | 104.68 miles (168.47 km) SSW | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 7 | 113.26 miles (182.28 km) SSW | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 8 | 123.01 miles (197.97 km) E | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 127.22 miles (204.74 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 10 | 131.09 miles (210.97 km) NE | Motueka Aerodrome (MZP) | Motueka, New Zealand | |
| 11 | 131.82 miles (212.14 km) NE | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 12 | 136.13 miles (219.09 km) NE | Takaka Aerodrome (KTF) | Takaka, New Zealand | |
| 13 | 152.29 miles (245.08 km) ENE | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 14 | 173.39 miles (279.05 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 15 | 184.01 miles (296.14 km) SSW | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,418.23 miles (19,985.15 km) NNW | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 2 | 12,400.69 miles (19,956.92 km) NNW | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 3 | 12,374.74 miles (19,915.17 km) NNW | A Coruña Airport (LCG) | A Coruña, Spain | |
| 4 | 12,373.52 miles (19,913.21 km) NNW | Braga Airport (BGZ) | Braga, Portugal | |
| 5 | 12,351.81 miles (19,878.26 km) N | Francisco Sá Carneiro Airport (OPO) | Porto, Portugal | |
| 6 | 12,337.60 miles (19,855.39 km) NW | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 7 | 12,321.29 miles (19,829.14 km) WNW | Bragança Airport (BGC) | Bragança, Portugal | |
| 8 | 12,277.26 miles (19,758.29 km) WNW | Asturias Airport (OVD) | Oviedo, Asturias, Spain | |
| 9 | 12,276.53 miles (19,757.10 km) N | Coimbra Airport (CBP) | Coimbra, Portugal | |
| 10 | 12,275.94 miles (19,756.16 km) W | León Airport (LEN) | León, Spain | |
| 11 | 12,270.08 miles (19,746.72 km) NNW | Covilhã Airport (COV) | Covilhã, Portugal | |
| 12 | 12,236.83 miles (19,693.21 km) WNW | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 13 | 12,227.25 miles (19,677.80 km) WNW | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 14 | 12,181.45 miles (19,604.10 km) N | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |
| 15 | 12,175.80 miles (19,595.00 km) WNW | Santander Airport (SDR) | Santander, Cantabria, Spain | |