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

About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Perth Airport (PER), Perth, Western Australia, Australia would travel a Great Circle distance of 9,892 miles (or 15,919 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 Roundup 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 Roundup 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 Roundup Airport (RPX):

• The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
• Roundup Airport (RPX) has 2 runways.

Facts about Perth Airport (PER):

• At this time also, airline operators Qantas and Ansett set about on ambitious capital works programs to construct new domestic terminals for their respective airlines on the northern side of the terminal, where they still stand to this day.
• The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
• The airport has seen strong passenger growth in the last few years, primarily due to the state's prolonged mining boom and an increase in traffic from international low-cost carrier airlines.
• Perth Airport (PER) has 2 runways.
• It was also on this day that Qantas commenced its Wallaby service using the Constellation Charles Kingsford Smith" from Sydney to South Africa via Western Australia, the Cocos Islands, and Mauritius.
• From 1962 onwards, both the domestic and international passenger operations at the airport were provided by a single terminal.
• 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.
• It is the fourth busiest airport in Australia and services Australian and Indian Ocean destinations, as well as Johannesburg, Auckland, Dubai, Abu Dhabi, Guangzhou and Doha.
• Despite military use of the airfield, civil services operated by Qantas Empire Airways and Australian National Airways commenced from the location in 1944.
• 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.
• Perth Airport handled 13,664,394 passengers last year.