Nonstop flight route between Caloundra, Queensland, Australia and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from CUD to SDY:
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- About this route
- CUD Airport Information
- SDY Airport Information
- Facts about CUD
- Facts about SDY
- Map of Nearest Airports to CUD
- List of Nearest Airports to CUD
- Map of Furthest Airports from CUD
- List of Furthest Airports from CUD
- 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 Caloundra Airport (CUD), Caloundra, Queensland, Australia and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 8,136 miles (or 13,093 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 Caloundra 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 Caloundra 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: | CUD / YCDR |
Airport Name: | Caloundra Airport |
Location: | Caloundra, Queensland, Australia |
GPS Coordinates: | 26°48'6"S by 153°6'17"E |
Area Served: | Caloundra, Sunshine Coast |
Operator/Owner: | Sunshine Coast Regional Council |
Airport Type: | Public |
Elevation: | 125 feet (38 meters) |
# of Runways: | 2 |
View all routes: | Routes from CUD |
More Information: | CUD 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 Caloundra Airport (CUD):
- Caloundra is one of two bases for Chopperline Flight Academy, a provider of flight training, maintenance and corporate charter services for helicopters and fixed wing aircraft.
- The furthest airport from Caloundra Airport (CUD) is La Palma Airport (SPC), which is located 11,864 miles (19,093 kilometers) away in La Palma, Canary Islands, Spain.
- Caloundra Airport (CUD) has 2 runways.
- Because of Caloundra Airport's relatively low elevation of 125 feet, planes can take off or land at Caloundra 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.
- The closest airport to Caloundra Airport (CUD) is Sunshine-Coast-Airport (MCY), which is located only 14 miles (22 kilometers) N of CUD.
- On 19 August 2010, Sunshine Coast council voted to retain Caloundra Airport in the current location.
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.