Nonstop flight route between Butte, Montana, United States and Decorah, Iowa, United States:
Departure Airport:
Arrival Airport:
Distance from BTM to DEH:
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- About this route
 - BTM Airport Information
 - DEH Airport Information
 - Facts about BTM
 - Facts about DEH
 - Map of Nearest Airports to BTM
 - List of Nearest Airports to BTM
 - Map of Furthest Airports from BTM
 - List of Furthest Airports from BTM
 - Map of Nearest Airports to DEH
 - List of Nearest Airports to DEH
 - Map of Furthest Airports from DEH
 - List of Furthest Airports from DEH
 
About this route:
A direct, nonstop flight between Bert Mooney Airport (BTM), Butte, Montana, United States and Decorah Municipal Airport (DEH), Decorah, Iowa, United States would travel a Great Circle distance of 1,035 miles (or 1,665 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 Bert Mooney Airport and Decorah Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 | 
Arrival Airport Information:
| IATA / ICAO Codes: | DEH / KDEH | 
| Airport Name: | Decorah Municipal Airport | 
| Location: | Decorah, Iowa, United States | 
| GPS Coordinates: | 43°16'32"N by 91°44'21"W | 
| Area Served: | Decorah, Iowa | 
| Operator/Owner: | City of Decorah | 
| Airport Type: | Public | 
| Elevation: | 1158 feet (353 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from DEH | 
| More Information: | DEH Maps & Info | 
Facts about Bert Mooney Airport (BTM):
- The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service facility.Federal Aviation Administration records say the airport had 30,431 passenger boardings in calendar year 2008, 25,178 in 2009 and 25,433 in 2010.
 - The closest airport to Bert Mooney Airport (BTM) is Dillon Airport (DLN), which is located 48 miles (78 kilometers) S of BTM.
 - 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.
 - Bert Mooney Airport is a public airport three miles southeast of Butte, in Silver Bow County, Montana.
 - On March 22, 2009 a Pilatus PC-12 flying in from Oroville, California crashed in Holy Cross Cemetery 500 feet from the airport, killing all 14 people on board.
 - The airport name was changed in 1972 to honor Bert Mooney, an aviator from Butte who was the first to fly mail into Yellowstone National Park in 1935.
 - 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.
 
Facts about Decorah Municipal Airport (DEH):
- The closest airport to Decorah Municipal Airport (DEH) is Prairie du Chien Municipal Airport (PCD), which is located 36 miles (58 kilometers) ESE of DEH.
 - Decorah Municipal Airport (DEH) currently has only 1 runway.
 - The furthest airport from Decorah Municipal Airport (DEH) is Margaret River Airport (MGV), which is located 10,859 miles (17,476 kilometers) away in Margaret River, Western Australia, Australia.
 
