Nonstop flight route between Fort Sill, Oklahoma, United States and Tiree, Scotland, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from FSI to TRE:
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- About this route
- FSI Airport Information
- TRE Airport Information
- Facts about FSI
- Facts about TRE
- 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 TRE
- List of Nearest Airports to TRE
- Map of Furthest Airports from TRE
- List of Furthest Airports from TRE
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Tiree Airport (TRE), Tiree, Scotland, United Kingdom would travel a Great Circle distance of 4,317 miles (or 6,948 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 Tiree 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 Tiree Airport. 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: | TRE / EGPU |
Airport Name: | Tiree Airport |
Location: | Tiree, Scotland, United Kingdom |
GPS Coordinates: | 56°29'57"N by 6°52'9"W |
Operator/Owner: | Highlands and Islands Airports Limited |
Airport Type: | Public |
Elevation: | 38 feet (12 meters) |
# of Runways: | 3 |
View all routes: | Routes from TRE |
More Information: | TRE Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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 sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- Post Field served as a base for flight training for the Air Service.
- 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.
Facts about Tiree Airport (TRE):
- Tiree Airport is located 2.5 nautical miles north northeast of Balemartine on the island of Tiree in the Inner Hebrides off the west coast of Scotland.
- The furthest airport from Tiree Airport (TRE) is Ryan's Creek Aerodrome (SZS), which is located 11,740 miles (18,894 kilometers) away in Stewart Island, New Zealand.
- Because of Tiree Airport's relatively low elevation of 38 feet, planes can take off or land at Tiree 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 closest airport to Tiree Airport (TRE) is Coll Island Airport (COL), which is located only 12 miles (19 kilometers) NE of TRE.
- Tiree Airport (TRE) has 3 runways.