Nonstop flight route between Fort Sill, Oklahoma, United States and Helsinki / Vantaa, Finland:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Helsinki Airport (HEL), Helsinki / Vantaa, Finland would travel a Great Circle distance of 5,136 miles (or 8,266 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 Helsinki 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 Helsinki 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):

• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.

Facts about Helsinki Airport (HEL):

• The Aviapolis is a new international business park adjacent to the Helsinki airport area, already hosting the operations of numerous companies around the airport.
• In addition to being known as "Helsinki Airport", another name for HEL is "Helsinki-Vantaan lentoasemaHelsingfors-Vanda flygplats".
• The airport is the international and domestic hub for Finnair, the Finnish flag carrier.
• There are regular bus service 615 and 620 to the Helsinki Central railway station in 30–55 minutes, and major hotels and railway stations in the Greater Helsinki Area in 15–120 minutes.
• The closest airport to Helsinki Airport (HEL) is Helsinki-Malmi Airport (HEM), which is located only 5 miles (8 kilometers) SSE of HEL.
• Because of Helsinki Airport's relatively low elevation of 179 feet, planes can take off or land at Helsinki 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 Helsinki Airport (HEL) is Chatham Islands (CHT), which is located 10,992 miles (17,689 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Helsinki Airport handled 15,279,043 passengers last year.
• Helsinki Airport (HEL) has 3 runways.