Nonstop flight route between Fort Sill, Oklahoma, United States and Derry, Northern Ireland, United Kingdom:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 4,345 miles (or 6,992 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 City of Derry 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 City of Derry 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.

Facts about City of Derry Airport (LDY):

• In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
• City of Derry Airport handled 384,973 passengers last year.
• After the war the base remained a military establishment until the 1950s when the Ministry of Defence returned much of the land to the original landowners.
• City of Derry Airport (LDY) currently has only 1 runway.
• In January 2009 the council appointed Albert Harrison, the former head of Belfast International Airport, as the new manager of the airport.
• The furthest airport from City of Derry Airport (LDY) is Ryan's Creek Aerodrome (SZS), which is located 11,838 miles (19,051 kilometers) away in Stewart Island, New Zealand.
• Because of City of Derry Airport's relatively low elevation of 23 feet, planes can take off or land at City of Derry 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 City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
• 2010 saw the commencement of a new route to Faro with Ryanair, the airport's second scheduled international destination.
• In June 2010 it was announced that the Airport was in the final stages of discussion with the Balfour Beatty Group about a management contract, with the objective of bringing additional commercial experience and resources to the Airport for the economic benefit of the region and to reduce the subvention from the City Council.
• As of April 2010, it has been reported that the airport has emerged from passenger recession, with passenger numbers released for February of the same year showing an increase over that of the same period for the year before.