Nonstop flight route between Seattle, Washington, United States and Perth, Western Australia, Australia:

About this route:

A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and Perth Airport (PER), Perth, Western Australia, Australia would travel a Great Circle distance of 9,242 miles (or 14,873 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 King County International 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 King County International 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 King County International Airport (BFI):

• Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County International 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 furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• King County International Airport (BFI) has 2 runways.
• The August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
• The initial assembly of the 737 was at Boeing Field in the 1960s because the factory in Renton was at capacity building the 707 and 727.
• Helijet, a helicopter airline based at Vancouver International Airport in British Columbia, scheduled Sikorsky S-76s to the Victoria Harbour Heliport in British Columbia and on to Helijet's Vancouver Harbour Heliport near downtown Vancouver, B.C.
• The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.

Facts about Perth Airport (PER):

• The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
• Passenger numbers have trebled in the past 10 years with more than 12.6 million people travelling through the airport in 2012.
• 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.
• Perth Airport is a domestic and international airport serving Perth, the capital and largest city of Western Australia.
• Perth Airport handled 13,664,394 passengers last year.
• Prior to the opening of the Perth Airport, civilian air services for the city were provided from Maylands Airport located in Maylands, as well as on the city's foreshore at Langley Park.
• 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.
• The airport only received international status and was renamed to Perth International Airport in 1952.
• Perth Airport (PER) has 2 runways.
• From 1962 onwards, both the domestic and international passenger operations at the airport were provided by a single terminal.
• In the late 1980s the Federal Government, as a prelude to eventual privatisation, formed the Federal Airports Corporation.
• 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.