Nonstop flight route between Shannon (County Clare), Ireland and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Shannon Airport (SNN), Shannon (County Clare), Ireland and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,340 miles (or 6,985 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 Shannon 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 Shannon 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 Shannon Airport (SNN):

• Shannon Airport handled 1,400,032 passengers last year.
• In November 2012, Aer Lingus also confirmed a new three-times-weekly service to Faro, Portugal, operating from May to September with an Airbus A320, strengthening Shannon's summer-sun destinations.
• CityJet launched a twice-daily route to Paris Charles de Gaulle Airport in 2008 when Aer Lingus closed its London Heathrow flights.
• In 1958, the Irish airline Aer Lingus began transatlantic service to the United States, using Lockheed Super Constellations for thrice-weekly service to New York City and Boston.
• The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
• In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
• Shannon Airport (SNN) currently has only 1 runway.
• The furthest airport from Shannon Airport (SNN) is Ryan's Creek Aerodrome (SZS), which is nearly antipodal to Shannon Airport (meaning Shannon Airport is almost on the exact opposite side of the Earth from Ryan's Creek Aerodrome), and is located 12,015 miles (19,336 kilometers) away in Stewart Island, New Zealand.
• In 2005, an agreement was reached regarding a transitional period.
• In 1966, Aer Lingus began service between Shannon and Chicago, with a stop in Montréal, Canada.
• In 2011, passenger numbers at Shannon declined by 7.4% from 1,755,885, to 1,625,549.
• The 1960s proved to be difficult for Shannon Airport.
• Because of Shannon Airport's relatively low elevation of 46 feet, planes can take off or land at Shannon 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 1980s saw a number of new airlines arrive at Shannon.

Facts about Henry Post Army Airfield (FSI):

• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• 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.
• 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
• 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.