Nonstop flight route between St. Mary's, Alaska, United States and Perth, Western Australia, Australia:

About this route:

A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Perth Airport (PER), Perth, Western Australia, Australia would travel a Great Circle distance of 7,862 miles (or 12,652 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 St. Mary's 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 St. Mary's 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 St. Mary's Airport (KSM):

• St. Mary's Airport (KSM) has 2 runways.
• Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
• The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.

Facts about Perth Airport (PER):

• 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.
• 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.
• 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.
• Perth Airport handled 13,664,394 passengers last year.
• Towards the mid-1950s, airline travel was still only being used by a small percentage of the population.
• Site selection and preparation of the original plans was undertaken by Mr N M Fricker of the Department of Civil Aviation.
• The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
• 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.
• Perth Airport (PER) has 2 runways.
• —Text of roadside plaque in memory of John Scott.