Nonstop flight route between Fort Sill, Oklahoma, United States and Carrickfinn, Ireland:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Donegal Airport (CFN), Carrickfinn, Ireland would travel a Great Circle distance of 4,302 miles (or 6,923 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 Donegal 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 Donegal 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):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.

Facts about Donegal Airport (CFN):

• Because of Donegal Airport's relatively low elevation of 30 feet, planes can take off or land at Donegal 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.
• Due to the large gas field in the area, non-scheduled chartered Helicopter flights connect to the multiple offshore installations.
• In addition to being known as "Donegal Airport", another name for CFN is "Aerfort Dhún na nGall".
• Donegal Airport (CFN) currently has only 1 runway.
• In February 2010, Aer Arann closed its service to Glasgow Prestwick Airport and relocated to Glasgow International Airport
• The closest airport to Donegal Airport (CFN) is City of Derry Airport (LDY), which is located 47 miles (75 kilometers) E of CFN.
• Donegal Airport is located 2 NM south-west of Bunbeg, being located at Carrickfinn, a townland in The Rosses, a district in north-west County Donegal, Ireland.
• The furthest airport from Donegal Airport (CFN) is Ryan's Creek Aerodrome (SZS), which is located 11,853 miles (19,076 kilometers) away in Stewart Island, New Zealand.