Nonstop flight route between Asmara, Eritrea and Sidney, Montana, United States:
Departure Airport:
(15°17'30"N by 38°54'38"E)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from ASM to SDY:
7,524.64 miles (12,109.70 km)
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Jump to:
- About this route
- ASM Airport Information
- SDY Airport Information
- Facts about ASM
- Facts about SDY
- Map of Nearest Airports to ASM
- List of Nearest Airports to ASM
- Map of Furthest Airports from ASM
- List of Furthest Airports from ASM
- 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 Asmara International Airport (ASM), Asmara, Eritrea and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 7,525 miles (or 12,110 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 Asmara International Airport and Sidney-Richland Municipal 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 Asmara International Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ASM / HHAS |
| Airport Name: | Asmara International Airport |
| Location: | Asmara, Eritrea |
| GPS Coordinates: | 15°17'30"N by 38°54'38"E |
| Area Served: | Asmara |
| Airport Type: | Military/Public |
| Elevation: | 7661 feet (2,335 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ASM |
| More Information: | ASM 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 Asmara International Airport (ASM):
- The furthest airport from Asmara International Airport (ASM) is Fangatau Airport (FGU), which is nearly antipodal to Asmara International Airport (meaning Asmara International Airport is almost on the exact opposite side of the Earth from Fangatau Airport), and is located 12,398 miles (19,952 kilometers) away in Fangatau, French Polynesia.
- On 7 July 1935, an agreement was signed with Imperial Airways to connect Asmara to Khartoum.
- The closest airport to Asmara International Airport (ASM) is Massawa International Airport (MSW), which is located 41 miles (66 kilometers) NE of ASM.
- Asmara International Airport (ASM) has 2 runways.
- Because of Asmara International Airport's high elevation of 7,661 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ASM. Combined with a high temperature, this could make ASM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Asmara International Airport has capacity restrictions due to its small terminal, short runway and 1.5-mile altitude.
- Asmara International Airport, formerly known as Yohannes IV International Airport, is an airport in Asmara, the capital of Eritrea.
Facts about Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 40.73 miles (65.55 km) NE | Massawa International Airport (MSW) | Massawa, Eritrea |     |
| 2 | 80.30 miles (129.23 km) S | Axum Emperor Yohannes IV Airport (AXU) | Axum, Ethiopia | |
| 3 | 132.78 miles (213.69 km) SSE | Alula Aba Nega Airport (MQX) | Mekelle, Tigray, Ethiopia | |
| 4 | 169.14 miles (272.20 km) SW | Humera Airport (HUE) | Humera, Ethiopia | |
| 5 | 172.17 miles (277.08 km) W | Kassala Airport (KSL) | Kassala, Sudan | |
| 6 | 203.87 miles (328.10 km) W | Khashm El Girba Airport (GBU) | Khashm El Girba, Sudan | |
| 7 | 215.62 miles (347.01 km) SSW | Gondar Atse Tewodros Airport (GDQ) | Gondar, Ethiopia | |
| 8 | 229.31 miles (369.04 km) S | Lalibela Airport (LLI) | Lalibela, Ethiopia | |
| 9 | 243.05 miles (391.16 km) SSW | Debre Tabor Airport (DBT) | Debre Tabor, Ethiopia | |
| 10 | 273.85 miles (440.71 km) E | Hodeida International Airport (HOD) | Al Hudaydah (Hodeida), Yemen | |
| 11 | 293.42 miles (472.22 km) ESE | Assab International Airport (ASA) | Assab, Eritrea | |
| 12 | 295.78 miles (476.01 km) S | Combolcha Airport (DSE) | Dessie / Kombolcha, Ethiopia | |
| 13 | 306.77 miles (493.70 km) NNW | Port Sudan New International Airport (PZU) | Port Sudan, Sudan | |
| 14 | 315.78 miles (508.20 km) S | Mekane Selam Airport (MKS) | Mekane Selam, Ethiopia | |
| 15 | 320.58 miles (515.92 km) SW | Galegu Airport (DNX) | Dinder, Sudan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,397.92 miles (19,952.46 km) SSW | Fangatau Airport (FGU) | Fangatau, French Polynesia | |
| 2 | 12,330.77 miles (19,844.39 km) ESE | Raroia Airport (RRR) | Raroia, French Polynesia | |
| 3 | 12,244.29 miles (19,705.22 km) S | Hao Airport (HOI) | Hao, Tuamotu Island, French Polynesia | |
| 4 | 12,244.28 miles (19,705.21 km) ESE | Makemo Airport (MKP) | Makemo, French Polynesia | |
| 5 | 12,128.42 miles (19,518.75 km) E | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 6 | 12,121.39 miles (19,507.44 km) SSW | Nukutavake Airport (NUK) | Nukutavake, Tuamotus, French Polynesia | |
| 7 | 12,110.92 miles (19,490.59 km) ESE | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 8 | 12,098.94 miles (19,471.31 km) E | Manihi Airport (XMH) | Manihi, French Polynesia | |
| 9 | 12,096.78 miles (19,467.84 km) SW | Pukarua Airport (PUK) | Pukarua, Tuamotus, French Polynesia | |
| 10 | 12,086.58 miles (19,451.42 km) E | Ahe Airport (AHE) | Ahe, French Polynesia | |
| 11 | 12,081.64 miles (19,443.47 km) E | Apataki Airport (APK) | Apataki, French Polynesia | |
| 12 | 12,068.13 miles (19,421.73 km) E | Arutua Airport (AXR) | Arutua, Tuamotus, French Polynesia | |
| 13 | 12,030.32 miles (19,360.87 km) SSW | Atuona Airport (AUQ) | Atuona, Marquesas Islands, French Polynesia | |
| 14 | 12,023.51 miles (19,349.91 km) SSW | Tureira Airport (ZTA) | Tureia, Tuamotus, French Polynesia | |
| 15 | 11,927.51 miles (19,195.41 km) E | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 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 | |