Nonstop flight route between Sidney, Montana, United States and Canouan Island, Saint Vincent and the Grenadines:
Departure Airport:

Arrival Airport:

Distance from SDY to CIW:
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- About this route
- SDY Airport Information
- CIW Airport Information
- Facts about SDY
- Facts about CIW
- 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 CIW
- List of Nearest Airports to CIW
- Map of Furthest Airports from CIW
- List of Furthest Airports from CIW
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Canouan Airport (CIW), Canouan Island, Saint Vincent and the Grenadines would travel a Great Circle distance of 3,449 miles (or 5,551 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 Sidney-Richland Municipal Airport and Canouan 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 Sidney-Richland Municipal Airport and Canouan Airport. You'll see that it will travel the same route of the red line on this map!
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: | CIW / TVSC |
Airport Name: | Canouan Airport |
Location: | Canouan Island, Saint Vincent and the Grenadines |
GPS Coordinates: | 12°41'57"N by 61°20'33"W |
Area Served: | Canouan |
Airport Type: | Public |
Elevation: | 11 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from CIW |
More Information: | CIW Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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 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 (SDY) has 2 runways.
Facts about Canouan Airport (CIW):
- The closest airport to Canouan Airport (CIW) is Union Island Airport (UNI), which is located only 8 miles (14 kilometers) SW of CIW.
- The furthest airport from Canouan Airport (CIW) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Canouan Airport (meaning Canouan Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,200 miles (19,633 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
- Because of Canouan Airport's relatively low elevation of 11 feet, planes can take off or land at Canouan 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.
- Canouan Airport (CIW) currently has only 1 runway.