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

Arrival Airport:

Distance from GLT to SDY:
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- About this route
- GLT Airport Information
- SDY Airport Information
- Facts about GLT
- Facts about SDY
- Map of Nearest Airports to GLT
- List of Nearest Airports to GLT
- Map of Furthest Airports from GLT
- List of Furthest Airports from GLT
- 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 Gladstone Airport (GLT), Gladstone, Queensland, Australia and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 8,085 miles (or 13,012 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 Gladstone 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 Gladstone 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: | GLT / YGLA |
Airport Name: | Gladstone Airport |
Location: | Gladstone, Queensland, Australia |
GPS Coordinates: | 23°52'10"S by 151°13'22"E |
Area Served: | Gladstone, Queensland, Australia |
Airport Type: | Public |
Elevation: | 59 feet (18 meters) |
# of Runways: | 1 |
View all routes: | Routes from GLT |
More Information: | GLT 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 Gladstone Airport (GLT):
- The closest airport to Gladstone Airport (GLT) is Rockhampton Airport (ROK), which is located 58 miles (94 kilometers) NW of GLT.
- The airport is owned and operated by the Gladstone Regional Council which took control of it by operation of the Local Government Reform when the Gladstone-Calliope Aerodrome Board was dissolved on 15 March 2007.
- The Gladstone Regional Council commenced an upgrade of the airport in 2008.
- Gladstone Airport is an airport serving Gladstone, a city in the Australian state of Queensland.
- Gladstone Airport (GLT) currently has only 1 runway.
- Because of Gladstone Airport's relatively low elevation of 59 feet, planes can take off or land at Gladstone 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 furthest airport from Gladstone Airport (GLT) is Agostinho Neto Airport (NTO), which is located 11,918 miles (19,180 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- 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.
- 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.