Nonstop flight route between Sidney, Montana, United States and Exmouth, Western Australia, Australia:
Departure Airport:

Arrival Airport:

Distance from SDY to LEA:
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- About this route
- SDY Airport Information
- LEA Airport Information
- Facts about SDY
- Facts about LEA
- 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 LEA
- List of Nearest Airports to LEA
- Map of Furthest Airports from LEA
- List of Furthest Airports from LEA
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and RAAF Learmonth (LEA), Exmouth, Western Australia, Australia would travel a Great Circle distance of 9,691 miles (or 15,595 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 RAAF Learmonth, 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 RAAF Learmonth. 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: | LEA / YPLM |
Airport Names: |
|
Location: | Exmouth, Western Australia, Australia |
GPS Coordinates: | 22°14'8"S by 114°5'18"E |
Area Served: | Exmouth, Western Australia |
Operator/Owner: | RAAF/Shire of Exmouth |
Airport Type: | Military/Public |
Elevation: | 19 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from LEA |
More Information: | LEA Maps & Info |
Facts about Sidney-Richland Municipal Airport (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.
- 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.
Facts about RAAF Learmonth (LEA):
- Because of RAAF Learmonth's relatively low elevation of 19 feet, planes can take off or land at RAAF Learmonth 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.
- RAAF Learmonth handled 90,861 passengers last year.
- During World War II a little-known landing field was constructed on the western shore of Exmouth Gulf.
- The furthest airport from RAAF Learmonth (LEA) is Fernando Luis Ribas Dominicci Airport (SIG), which is nearly antipodal to RAAF Learmonth (meaning RAAF Learmonth is almost on the exact opposite side of the Earth from Fernando Luis Ribas Dominicci Airport), and is located 12,175 miles (19,594 kilometers) away in San Juan, Puerto Rico.
- RAAF Learmonth (LEA) currently has only 1 runway.
- RAAF Learmonth, also known as Learmonth Airport, is a joint use Royal Australian Air Force base and civil airport.
- The closest airport to RAAF Learmonth (LEA) is Barrow Island Airport (BWB), which is located 127 miles (204 kilometers) NE of LEA.
- In addition to being known as "RAAF Learmonth", another name for LEA is "Learmonth Airport".
- Learmonth Airport was ranked 49th in Australia for the number of revenue passengers served in financial year 2012-2013.