Nonstop flight route between Fort Sill, Oklahoma, United States and Hyvinkää, Finland:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Hyvinkää Airfield (HYV), Hyvinkää, Finland would travel a Great Circle distance of 5,118 miles (or 8,237 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 Hyvinkää 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 Henry Post Army Airfield and Hyvinkää 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 Henry Post Army Airfield (FSI):

• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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 (FSI) currently has only 1 runway.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.

Facts about Hyvinkää Airfield (HYV):

• Because of Hyvinkää Airfield's relatively low elevation of 430 feet, planes can take off or land at Hyvinkää Airfield 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 closest airport to Hyvinkää Airfield (HYV) is Helsinki Airport (HEL), which is located 23 miles (38 kilometers) S of HYV.
• Hyvinkää Airfield (HYV) has 2 runways.
• In addition to being known as "Hyvinkää Airfield", another name for HYV is "Hyvinkään lentokenttä".
• The furthest airport from Hyvinkää Airfield (HYV) is Chatham Islands (CHT), which is located 10,978 miles (17,667 kilometers) away in Waitangi, Chatham Islands, New Zealand.