Nonstop flight route between Mendi, Papua New Guinea and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from MDU to SDY:
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- About this route
- MDU Airport Information
- SDY Airport Information
- Facts about MDU
- Facts about SDY
- Map of Nearest Airports to MDU
- List of Nearest Airports to MDU
- Map of Furthest Airports from MDU
- List of Furthest Airports from MDU
- 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 Mendi Airport (MDU), Mendi, Papua New Guinea and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 7,556 miles (or 12,160 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 Mendi 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 Mendi 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: | MDU / AYMN |
Airport Name: | Mendi Airport |
Location: | Mendi, Papua New Guinea |
GPS Coordinates: | 6°8'51"S by 143°39'25"E |
Elevation: | 5680 feet (1,731 meters) |
# of Runways: | 1 |
View all routes: | Routes from MDU |
More Information: | MDU 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 Mendi Airport (MDU):
- Because of Mendi Airport's high elevation of 5,680 feet, planes must typically fly at a faster airspeed in order to takeoff or land at MDU. Combined with a high temperature, this could make MDU a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Mendi Airport (MDU) currently has only 1 runway.
- The furthest airport from Mendi Airport (MDU) is Pinto Martins – Fortaleza International Airport (FOR), which is located 11,735 miles (18,885 kilometers) away in Fortaleza, Ceará, Brazil.
- The closest airport to Mendi Airport (MDU) is Moro Airport (MXH), which is located 32 miles (52 kilometers) WSW of MDU.
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
- 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.