Nonstop flight route between Armidale, New South Wales, Australia and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from ARM to SDY:
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- About this route
- ARM Airport Information
- SDY Airport Information
- Facts about ARM
- Facts about SDY
- Map of Nearest Airports to ARM
- List of Nearest Airports to ARM
- Map of Furthest Airports from ARM
- List of Furthest Airports from ARM
- 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 Armidale Airport (ARM), Armidale, New South Wales, Australia and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 8,373 miles (or 13,475 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 Armidale 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 Armidale 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: | ARM / YARM |
Airport Name: | Armidale Airport |
Location: | Armidale, New South Wales, Australia |
GPS Coordinates: | 30°31'41"S by 151°37'0"E |
Area Served: | Armidale, New South Wales, Australia |
Operator/Owner: | Armidale Dumaresq Shire |
Airport Type: | Public |
Elevation: | 3556 feet (1,084 meters) |
# of Runways: | 2 |
View all routes: | Routes from ARM |
More Information: | ARM 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 Armidale Airport (ARM):
- The closest airport to Armidale Airport (ARM) is Inverell Airport (IVR), which is located 52 miles (84 kilometers) NNW of ARM.
- The furthest airport from Armidale Airport (ARM) is Santa Maria Airport (SMA), which is located 11,955 miles (19,239 kilometers) away in Santa Maria, Portugal.
- Armidale Airport (ARM) has 2 runways.
- Hazelton Airlines, an affiliate of Ansett Australia, operated between Sydney and Armidale from 1989 until the company collapsed in 2002.
- The Armidale Dumaresq Shire Council has a number of upgrades to the airport currently in progress, with much of the funding for the works promised by Member for New England Barnaby Joyce during the 2013 Australian federal election campaign.
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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- 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.