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

About this route:

A direct, nonstop flight between Helsinki Airport (HEL), Helsinki / Vantaa, Finland and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States 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 Helsinki 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 Helsinki 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 Helsinki Airport (HEL):

• Finnair's head office is located in Tietotie 11 on the grounds of Helsinki Airport.
• Helsinki Airport handled 15,279,043 passengers last year.
• 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.
• 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.
• In addition to being known as "Helsinki Airport", another name for HEL is "Helsinki-Vantaan lentoasemaHelsingfors-Vanda flygplats".
• 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.
• Connecting the airport by frequent local bus 61 of Helsinki Regional Transport Authority or taxi to the Tikkurila railway station provides access to commuter trains as well as to long-distance trains in the directions of Tampere and Lahti, including lines to Saint Petersburg and Moscow.
• The airport is nominally divided into 2 terminals, located 250 metres apart and linked by an internal pedestrian connection both airside and landside.
• Helsinki Airport (HEL) has 3 runways.

Facts about Henry Post Army Airfield (FSI):

• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• 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.
• Post Field served as a base for flight training for the Air Service.