Nonstop flight route between Fort Sill, Oklahoma, United States and Avalon, Victoria, Australia:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Avalon Airport (AVV), Avalon, Victoria, Australia would travel a Great Circle distance of 9,013 miles (or 14,505 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 Henry Post Army Airfield and Avalon 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 Henry Post Army Airfield and Avalon 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 Henry Post Army Airfield (FSI):

• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• Post Field served as a base for flight training for the Air Service.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.

Facts about Avalon Airport (AVV):

• The furthest airport from Avalon Airport (AVV) is Flores Airport (FLW), which is nearly antipodal to Avalon Airport (meaning Avalon Airport is almost on the exact opposite side of the Earth from Flores Airport), and is located 12,165 miles (19,578 kilometers) away in Flores Island, Azores, Portugal.
• Since the introduction of Jetstar in 2004, the Avalon Airport terminal facilities have been expanded from the original size of 732 square metres to nearly 5,600 square metres.
• In addition to being known as "Avalon Airport", another name for AVV is "Melbourne/Avalon".
• The closest airport to Avalon Airport (AVV) is Geelong Airport (GEX), which is located only 16 miles (25 kilometers) SE of AVV.
• Since acquiring the Head Lease in 1997, Linfox has changed the Airport which now holds the biennial Australian International Airshow – the showcase event of Australia’s aviation sector. 
• Avalon Airport (AVV) currently has only 1 runway.
• Because of Avalon Airport's relatively low elevation of 115 feet, planes can take off or land at Avalon 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 airport was opened in 1953, to cater for the production of military aircraft.