Nonstop flight route between Sidney, Montana, United States and Perth, Western Australia, Australia:

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Perth Airport (PER), Perth, Western Australia, Australia would travel a Great Circle distance of 10,079 miles (or 16,220 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 Perth 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 Perth Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

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 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 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.

Facts about Perth Airport (PER):

• Even before civil aviation operations could commence at the new site, the onset of World War II saw the facility being redesigned for military purposes as a temporary base for the Royal Australian Air Force and United States Navy, known as "RAAF Station Guildford", primarily to supplement RAAF Base Pearce.Royal Australian Air Force No.
• It was at this time the airport began to experience the full effects of the jet age.
• The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
• The domestic and international terminals are located separately, 11 km apart, and connected by a road – Dunreath Drive – an internal road connection within the airport boundaries.
• Despite military use of the airfield, civil services operated by Qantas Empire Airways and Australian National Airways commenced from the location in 1944.
• Passenger numbers have trebled in the past 10 years with more than 12.6 million people travelling through the airport in 2012.
• Perth Airport (PER) has 2 runways.
• Perth Airport handled 13,664,394 passengers last year.
• Because of Perth Airport's relatively low elevation of 67 feet, planes can take off or land at Perth 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.
• From 2003 to 2004, the International terminal underwent major internal refurbishments to provide an increased array of passenger services, including increased space for duty-free stores and food and beverage concession stands.
• The furthest airport from Perth Airport (PER) is L.F. Wade International Airport (BDA), which is nearly antipodal to Perth Airport (meaning Perth Airport is almost on the exact opposite side of the Earth from L.F. Wade International Airport), and is located 12,389 miles (19,938 kilometers) away in Ferry Reach (near Hamilton), Bermuda.