Nonstop flight route between Kilronan, Inishmore, Ireland and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from IOR to FSI:
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- About this route
- IOR Airport Information
- FSI Airport Information
- Facts about IOR
- Facts about FSI
- Map of Nearest Airports to IOR
- List of Nearest Airports to IOR
- Map of Furthest Airports from IOR
- List of Furthest Airports from IOR
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Inishmore Aerodrome (IOR), Kilronan, Inishmore, Ireland and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States 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 Inishmore Aerodrome 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 Inishmore Aerodrome 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:
IATA / ICAO Codes: | IOR / EIIM |
Airport Names: |
|
Location: | Kilronan, Inishmore, Ireland |
GPS Coordinates: | 53°6'24"N by 9°39'14"W |
Area Served: | Inishmore, Aran Islands, County Galway, Ireland |
Operator/Owner: | Údarás na Gaeltachta Na Forbacha |
Airport Type: | Private |
Elevation: | 24 feet (7 meters) |
# of Runways: | 1 |
View all routes: | Routes from IOR |
More Information: | IOR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Facts about Inishmore Aerodrome (IOR):
- Because of Inishmore Aerodrome's relatively low elevation of 24 feet, planes can take off or land at Inishmore Aerodrome 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 Inishmore Aerodrome (IOR) is Ryan's Creek Aerodrome (SZS), which is located 11,997 miles (19,307 kilometers) away in Stewart Island, New Zealand.
- In addition to being known as "Inishmore Aerodrome", another name for IOR is "Kilronan Airport".
- Inishmore Aerodrome (IOR) currently has only 1 runway.
- The closest airport to Inishmore Aerodrome (IOR) is Inishmaan Aerodrome (IIA), which is located only 4 miles (6 kilometers) ESE of IOR.
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.
- 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- 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.