Nonstop flight route between Amook Bay, Alaska, United States and Sidney, Montana, United States:
Departure Airport:
(57°28'17"N by 153°48'55"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from AOS to SDY:
2,134.88 miles (3,435.75 km)
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- About this route
- AOS Airport Information
- SDY Airport Information
- Facts about AOS
- Facts about SDY
- Map of Nearest Airports to AOS
- List of Nearest Airports to AOS
- Map of Furthest Airports from AOS
- List of Furthest Airports from AOS
- 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 Amook Bay Seaplane Base (AOS), Amook Bay, Alaska, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 2,135 miles (or 3,436 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 Amook Bay Seaplane Base 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: | AOS / |
| Airport Names: |
|
| Location: | Amook Bay, Alaska, United States |
| GPS Coordinates: | 57°28'17"N by 153°48'55"W |
| Area Served: | Amook Bay, Alaska |
| Operator/Owner: | Mike Munsey |
| Airport Type: | Private |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from AOS |
| More Information: | AOS 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 Amook Bay Seaplane Base (AOS):
- In addition to being known as "Amook Bay Seaplane Base", another name for AOS is "AK81".
- The furthest airport from Amook Bay Seaplane Base (AOS) is Port Elizabeth International Airport (PLZ), which is located 10,814 miles (17,403 kilometers) away in Port Elizabeth, South Africa.
- Although classified by the FAA as "private use", Amook Bay has scheduled passenger service to Kodiak, Alaska, which is subsidized by the United States Department of Transportation via the Essential Air Service program.
- Amook Bay Seaplane Base (AOS) currently has only 1 runway.
- Because of Amook Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Amook Bay Seaplane Base 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 Amook Bay Seaplane Base (AOS) is Zachar Bay Seaplane Base (KZB), which is located only 6 miles (10 kilometers) NNE of AOS.
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.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.22 miles (10.01 km) NNE | Zachar Bay Seaplane Base (KZB) | Zachar Bay, Alaska, United States |     |
| 2 | 7.43 miles (11.96 km) NW | Larsen Bay Airport (KLN) | Larsen Bay, Alaska, United States | |
| 3 | 22.87 miles (36.80 km) NNE | West Point Village Seaplane Base (KWP) | West Point, Kodiak Island Borough, Alaska, United States | |
| 4 | 24.58 miles (39.56 km) WNW | Karluk Airport (KYK) | Karluk, Alaska, United States | |
| 5 | 25.60 miles (41.20 km) NE | San Juan (Uganik) Seaplane Base (UGI) | Uganik Island, United States | |
| 6 | 26.42 miles (42.51 km) SW | Olga Bay Seaplane Base (KOY) | Olga Bay, Kodiak Island Borough, Alaska, United States | |
| 7 | 26.84 miles (43.19 km) SE | Old Harbor Airport (OLH) | Old Harbor, Alaska, United States | |
| 8 | 33.19 miles (53.41 km) SSW | Moser Bay Seaplane Base (KMY) | Moser Bay, Kodiak Island Borough, Alaska, United States | |
| 9 | 39.29 miles (63.24 km) SSW | Akhiok Airport (AKK) | Akhiok, Alaska, United States | |
| 10 | 42.69 miles (68.70 km) NE | Port Bailey Seaplane Base (KPY) | Port Bailey, Kodiak Island Borough, Alaska, United States | |
| 11 | 42.71 miles (68.73 km) SSW | Alitak Seaplane Base (ALZ) | Lazy Bay, Alaska, United States | |
| 12 | 45.82 miles (73.74 km) NE | Port Lions Airport (ORI) | Port Lions, Alaska, United States | |
| 13 | 52.55 miles (84.57 km) ENE | Kodiak Benny Benson State Airport (ADQ) | Kodiak, Alaska, United States | |
| 14 | 58.10 miles (93.50 km) ENE | Kodiak Municipal Airport (KDK) | Kodiak, Alaska, United States | |
| 15 | 59.52 miles (95.79 km) ENE | Ouzinkie Airport (KOZ) | Ouzinkie, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,813.80 miles (17,403.09 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,805.81 miles (17,390.22 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,783.96 miles (17,355.05 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,774.64 miles (17,340.05 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 5 | 10,746.65 miles (17,295.01 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,641.64 miles (17,126.01 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,587.38 miles (17,038.69 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,527.46 miles (16,942.27 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,525.41 miles (16,938.96 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,524.27 miles (16,937.13 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,518.97 miles (16,928.59 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,503.61 miles (16,903.88 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,500.43 miles (16,898.76 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 14 | 10,497.66 miles (16,894.31 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,484.09 miles (16,872.47 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 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 | |