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: |
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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 closest airport to Inishmore Aerodrome (IOR) is Inishmaan Aerodrome (IIA), which is located only 4 miles (6 kilometers) ESE of IOR.
- 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.
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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.