Nonstop flight route between Fort Sill, Oklahoma, United States and Kärdla, Hiiumaa, Estonia:
Departure Airport:

Arrival Airport:

Distance from FSI to KDL:
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- About this route
- FSI Airport Information
- KDL Airport Information
- Facts about FSI
- Facts about KDL
- 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 KDL
- List of Nearest Airports to KDL
- Map of Furthest Airports from KDL
- List of Furthest Airports from KDL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Kärdla Airport (KDL), Kärdla, Hiiumaa, Estonia would travel a Great Circle distance of 5,146 miles (or 8,282 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 Kärdla 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 Kärdla 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: | KDL / EEKA |
Airport Names: |
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Location: | Kärdla, Hiiumaa, Estonia |
GPS Coordinates: | 58°59'26"N by 22°49'50"E |
Operator/Owner: | SC Kärdla Airport |
Airport Type: | Public |
Elevation: | 18 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from KDL |
More Information: | KDL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
Facts about Kärdla Airport (KDL):
- The furthest airport from Kärdla Airport (KDL) is Chatham Islands (CHT), which is located 11,109 miles (17,877 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- In addition to being known as "Kärdla Airport", another name for KDL is "Kärdla lennujaam".
- Kärdla Airport (KDL) currently has only 1 runway.
- Because of Kärdla Airport's relatively low elevation of 18 feet, planes can take off or land at Kärdla 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.
- Kärdla Airport opened in 1963.
- On 23 November 2001 an airplane with 17 people on board crashed on its way from Tallinn to Kärdla, near Palade at Hiiumaa.
- The closest airport to Kärdla Airport (KDL) is Kuressaare Airport (URE), which is located 54 miles (87 kilometers) SSW of KDL.