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):

• The transfer of ownership of Boeing Field from King County to the Port of Seattle was proposed in 2007 as part of a land swap with land owned by the Port.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• 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.
• 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.
• Boeing Field as seen from the Air Traffic Control Tower
• 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.
• King County International Airport (BFI) has 2 runways.

Facts about Perth Airport (PER):

• Perth Airport (PER) has 2 runways.
• The two domestic terminals are side by side and about 12 km from the Perth CBD, while the international terminal is 17 km from Perth.
• In 1960, the current international terminal previously constructed from steel and cladding from Manus Island was dismantled and then re-erected in the suburb of Cannington.
• Site selection and preparation of the original plans was undertaken by Mr N M Fricker of the Department of Civil Aviation.
• 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.
• On 11 October 2007, Perth International Airport received the first test flight out of Terminal 3 at Changi International Airport, Singapore.
• The move was agreed to by the government of the day, as the larger types of aircraft of the day being operated by the two airlines could simply not be handled at Maylands, notwithstanding the small grass airfield, lack of passenger facilities, and approaches being difficult due to surrounding industrial infrastructure.
• 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.
• The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
• In November 1980, the Federal Transport Minister, Ralph Hunt, announced that a new international terminal would be built in Perth at a cost of A$26 million.
• 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.