Nonstop flight route between Georgetown, Ascension Island, Saint Helena and Butte, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from ASI to BTM:
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- About this route
- ASI Airport Information
- BTM Airport Information
- Facts about ASI
- Facts about BTM
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
- Map of Nearest Airports to BTM
- List of Nearest Airports to BTM
- Map of Furthest Airports from BTM
- List of Furthest Airports from BTM
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Bert Mooney Airport (BTM), Butte, Montana, United States would travel a Great Circle distance of 7,002 miles (or 11,269 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 RAF Ascension and Bert Mooney 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 RAF Ascension and Bert Mooney Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ASI / FHAW |
Airport Names: |
|
Location: | Georgetown, Ascension Island, Saint Helena |
GPS Coordinates: | 7°58'9"S by 14°23'38"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from ASI |
More Information: | ASI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | BTM / KBTM |
Airport Name: | Bert Mooney Airport |
Location: | Butte, Montana, United States |
GPS Coordinates: | 45°57'16"N by 112°29'51"W |
Area Served: | Butte, Montana |
Operator/Owner: | Bert Mooney Airport Authority |
Airport Type: | Public |
Elevation: | 5550 feet (1,692 meters) |
# of Runways: | 2 |
View all routes: | Routes from BTM |
More Information: | BTM Maps & Info |
Facts about RAF Ascension (ASI):
- The station comes under the overall jurisdiction of the Commander British Forces South Atlantic Islands, an officer of one-star rank.
- The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- In 1939 Ascension became important as a HF/DF radio station covering trade routes.
- Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
Facts about Bert Mooney Airport (BTM):
- Bert Mooney Airport is a public airport three miles southeast of Butte, in Silver Bow County, Montana.
- The furthest airport from Bert Mooney Airport (BTM) is Sir Gaëtan Duval Airport (RRG), which is located 10,611 miles (17,077 kilometers) away in Rodrigues Island, Mauritius.
- Because of Bert Mooney Airport's high elevation of 5,550 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BTM. Combined with a high temperature, this could make BTM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Bert Mooney Airport (BTM) has 2 runways.
- The closest airport to Bert Mooney Airport (BTM) is Dillon Airport (DLN), which is located 48 miles (78 kilometers) S of BTM.