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

Arrival Airport:

Distance from FSI to IOR:
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- About this route
- FSI Airport Information
- IOR Airport Information
- Facts about FSI
- Facts about 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
- Map of Nearest Airports to IOR
- List of Nearest Airports to IOR
- Map of Furthest Airports from IOR
- List of Furthest Airports from IOR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Inishmore Aerodrome (IOR), Kilronan, Inishmore, 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 Inishmore Aerodrome, 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 Inishmore Aerodrome. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
Facts about Henry Post Army Airfield (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.
- 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 Army Airfield (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
Facts about Inishmore Aerodrome (IOR):
- In addition to being known as "Inishmore Aerodrome", another name for IOR is "Kilronan Airport".
- The closest airport to Inishmore Aerodrome (IOR) is Inishmaan Aerodrome (IIA), which is located only 4 miles (6 kilometers) ESE of IOR.
- Inishmore Aerodrome (IOR) currently has only 1 runway.
- 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.
- 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.