Nonstop flight route between Derby, Western Australia, Australia and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Derby Airport (DRB), Derby, Western Australia, Australia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 9,591 miles (or 15,436 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 Derby Airport and Henry Post Army Airfield, 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 Derby Airport and Henry Post Army Airfield. 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 Derby Airport (DRB):

• The closest airport to Derby Airport (DRB) is Broome International Airport (BME), which is located 102 miles (165 kilometers) WSW of DRB.
• Because of Derby Airport's relatively low elevation of 24 feet, planes can take off or land at Derby 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 Derby Airport (DRB) is Pointe-à-Pitre Le Raizet Airport (PTP), which is nearly antipodal to Derby Airport (meaning Derby Airport is almost on the exact opposite side of the Earth from Pointe-à-Pitre Le Raizet Airport), and is located 12,085 miles (19,449 kilometers) away in Pointe-à-Pitre, Guadeloupe.
• Derby Airport (DRB) currently has only 1 runway.

Facts about Henry Post Army Airfield (FSI):

• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• 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.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.