Nonstop flight route between Fort Sill, Oklahoma, United States and Læsø, Denmark:
Departure Airport:

Arrival Airport:

Distance from FSI to BYR:
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- About this route
- FSI Airport Information
- BYR Airport Information
- Facts about FSI
- Facts about BYR
- 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 BYR
- List of Nearest Airports to BYR
- Map of Furthest Airports from BYR
- List of Furthest Airports from BYR
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Laesoe Airfield (BYR), Læsø, Denmark would travel a Great Circle distance of 4,885 miles (or 7,861 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 Laesoe 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 Henry Post Army Airfield and Laesoe Airfield. 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: | BYR / EKLS |
Airport Names: |
|
Location: | Læsø, Denmark |
GPS Coordinates: | 57°16'36"N by 10°59'58"E |
Area Served: | Læsø |
Operator/Owner: | Læsø Kommune |
Airport Type: | Public |
Elevation: | 25 feet (8 meters) |
# of Runways: | 1 |
View all routes: | Routes from BYR |
More Information: | BYR Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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.
Facts about Laesoe Airfield (BYR):
- Laesoe Airfield (BYR) currently has only 1 runway.
- The furthest airport from Laesoe Airfield (BYR) is Chatham Islands (CHT), which is located 11,452 miles (18,430 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Because of Laesoe Airfield's relatively low elevation of 25 feet, planes can take off or land at Laesoe Airfield 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.
- In addition to being known as "Laesoe Airfield", another name for BYR is "Læsø Flyveplads".
- The closest airport to Laesoe Airfield (BYR) is Sindal Airport (CNL), which is located 33 miles (53 kilometers) WNW of BYR.