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

About this route:

A direct, nonstop flight between Oulu Airport (OUL), Oulu, Finland and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,924 miles (or 7,924 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 Oulu 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 Oulu 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 Oulu Airport (OUL):

• Oulu Airport handled 877,080 passengers last year.
• In addition to being known as "Oulu Airport", another name for OUL is "Oulun lentoasema".
• The furthest airport from Oulu Airport (OUL) is Chatham Islands (CHT), which is located 10,753 miles (17,306 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Because of Oulu Airport's relatively low elevation of 47 feet, planes can take off or land at Oulu 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 closest airport to Oulu Airport (OUL) is Kemi-Tornio Airport (KEM), which is located 63 miles (101 kilometers) NNW of OUL.
• Oulu Airport (OUL) currently has only 1 runway.

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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Post Field served as a base for flight training for the Air Service.
• 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.
• 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.