Nonstop flight route between Sidney, Montana, United States and Norfolk Island, Australia:
Departure Airport:

Arrival Airport:

Distance from SDY to NLK:
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- About this route
- SDY Airport Information
- NLK Airport Information
- Facts about SDY
- Facts about NLK
- 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 NLK
- List of Nearest Airports to NLK
- Map of Furthest Airports from NLK
- List of Furthest Airports from NLK
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Norfolk Island Airport (NLK), Norfolk Island, Australia would travel a Great Circle distance of 7,580 miles (or 12,199 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 Norfolk Island 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 Norfolk Island 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: | NLK / YNSF |
Airport Names: |
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Location: | Norfolk Island, Australia |
GPS Coordinates: | 29°2'33"S by 167°56'17"E |
Area Served: | Norfolk Island |
Operator/Owner: | Administration of Norfolk Island |
Airport Type: | Public |
Elevation: | 371 feet (113 meters) |
# of Runways: | 2 |
View all routes: | Routes from NLK |
More Information: | NLK Maps & Info |
Facts about Sidney-Richland Municipal Airport (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.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
Facts about Norfolk Island Airport (NLK):
- Because of Norfolk Island Airport's relatively low elevation of 371 feet, planes can take off or land at Norfolk Island 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 closest airport to Norfolk Island Airport (NLK) is Nouméa Magenta Airport (GEA), which is located 478 miles (769 kilometers) NNW of NLK.
- Norfolk Island Airport handled 57,758 passengers last year.
- The furthest airport from Norfolk Island Airport (NLK) is Tan Tan Airport (TTA), which is nearly antipodal to Norfolk Island Airport (meaning Norfolk Island Airport is almost on the exact opposite side of the Earth from Tan Tan Airport), and is located 12,369 miles (19,905 kilometers) away in Tan-Tan, Morocco.
- In addition to being known as "Norfolk Island Airport", another name for NLK is "YSNF".
- These distances are within the range of many light aircraft when fitted with long range tanks, while the direct distance without using Norfolk Island as a stepping stone, is usually beyond their capabilities.
- Norfolk Island Airport (NLK) has 2 runways.