Nonstop flight route between Sidney, Montana, United States and Cape Girardeau, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from SDY to CGI:
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- About this route
- SDY Airport Information
- CGI Airport Information
- Facts about SDY
- Facts about CGI
- 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 CGI
- List of Nearest Airports to CGI
- Map of Furthest Airports from CGI
- List of Furthest Airports from CGI
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Cape Girardeau Regional Airport (CGI), Cape Girardeau, Missouri, United States would travel a Great Circle distance of 1,036 miles (or 1,667 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 Cape Girardeau Regional 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: | CGI / KCGI |
Airport Names: |
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Location: | Cape Girardeau, Missouri, United States |
GPS Coordinates: | 37°13'31"N by 89°34'14"W |
Area Served: | Cape Girardeau, Missouri |
Operator/Owner: | City of Cape Girardeau |
Airport Type: | Public |
Elevation: | 342 feet (104 meters) |
# of Runways: | 2 |
View all routes: | Routes from CGI |
More Information: | CGI Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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.
- 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.
Facts about Cape Girardeau Regional Airport (CGI):
- The furthest airport from Cape Girardeau Regional Airport (CGI) is Margaret River Airport (MGV), which is located 11,036 miles (17,761 kilometers) away in Margaret River, Western Australia, Australia.
- Cape Girardeau Regional Airport covers an area of 557 acres at an elevation of 342 feet above mean sea level.
- Because of Cape Girardeau Regional Airport's relatively low elevation of 342 feet, planes can take off or land at Cape Girardeau Regional 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.
- Cape Girardeau Regional Airport (CGI) has 2 runways.
- In addition to being known as "Cape Girardeau Regional Airport", another name for CGI is "Harris Army Airfield".
- Contract flying training was short at the airfield, the school closing during the late summer of 1944 with the drawdown of AAFTC's pilot training program.
- Opened in 1943, the airport was constructed by the United States Army Air Forces.
- The closest airport to Cape Girardeau Regional Airport (CGI) is Sikeston Memorial Municipal AirportHarvey Parks Army Airfield (SIK), which is located 23 miles (36 kilometers) S of CGI.