Nonstop flight route between Sidney, Montana, United States and Annette Island, Alaska, United States:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(55°2'32"N by 131°34'19"W)
Distance from SDY to ANN:
1,274.48 miles (2,051.06 km)
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Jump to:
- About this route
- SDY Airport Information
- ANN Airport Information
- Facts about SDY
- Facts about ANN
- 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 ANN
- List of Nearest Airports to ANN
- Map of Furthest Airports from ANN
- List of Furthest Airports from ANN
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Annette Island Airport (ANN), Annette Island, Alaska, United States would travel a Great Circle distance of 1,274 miles (or 2,051 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 Annette Island Airport, 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: | ANN / PANT |
| Airport Names: |
|
| Location: | Annette Island, Alaska, United States |
| GPS Coordinates: | 55°2'32"N by 131°34'19"W |
| Area Served: | Metlakatla, Alaska |
| Operator/Owner: | Metlakatla Indian Community |
| Airport Type: | Private |
| Elevation: | 119 feet (36 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ANN |
| More Information: | ANN Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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.
Facts about Annette Island Airport (ANN):
- The furthest airport from Annette Island Airport (ANN) is Port Alfred Airport (AFD), which is located 10,625 miles (17,100 kilometers) away in Port Alfred, South Africa.
- Because of Annette Island Airport's relatively low elevation of 119 feet, planes can take off or land at Annette Island 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.
- In addition to being known as "Annette Island Airport", another name for ANN is "Annette Island Army Airfield".
- The closest airport to Annette Island Airport (ANN) is Metlakatla Seaplane Base (MTM), which is located only 6 miles (10 kilometers) N of ANN.
- Annette Island Airport (ANN) has 2 runways.
| 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 | 6.13 miles (9.86 km) N | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 2 | 21.17 miles (34.07 km) N | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 3 | 22.22 miles (35.76 km) NNW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 4 | 50.90 miles (81.92 km) WNW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 5 | 51.69 miles (83.18 km) NW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 6 | 58.51 miles (94.17 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 7 | 68.24 miles (109.82 km) WNW | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 8 | 68.97 miles (111.00 km) WNW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 9 | 69.02 miles (111.07 km) SE | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 10 | 69.80 miles (112.33 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 11 | 71.09 miles (114.41 km) SE | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 12 | 73.57 miles (118.39 km) SSW | Masset Airport (ZMT) | Masset, British Columbia, Canada | |
| 13 | 83.34 miles (134.13 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 14 | 85.42 miles (137.46 km) NE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 85.55 miles (137.68 km) NW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,625.32 miles (17,099.74 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,618.90 miles (17,089.41 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,615.66 miles (17,084.20 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,548.30 miles (16,975.80 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,544.74 miles (16,970.07 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,520.54 miles (16,931.13 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,482.13 miles (16,869.31 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,468.45 miles (16,847.30 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,445.97 miles (16,811.12 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,443.57 miles (16,807.26 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,427.80 miles (16,781.88 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,425.77 miles (16,778.61 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,414.81 miles (16,760.97 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,403.07 miles (16,742.07 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,401.84 miles (16,740.10 km) SSE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |