Nonstop flight route between Fort Sill, Oklahoma, United States and Dunkerque, France:
Departure Airport:

Arrival Airport:

Distance from FSI to XDK:
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- About this route
- FSI Airport Information
- XDK Airport Information
- Facts about FSI
- Facts about XDK
- 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 XDK
- List of Nearest Airports to XDK
- Map of Furthest Airports from XDK
- List of Furthest Airports from XDK
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Dunkerque – Les Moëres Airfield (XDK), Dunkerque, France would travel a Great Circle distance of 4,829 miles (or 7,771 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 Dunkerque – Les Moëres 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 Dunkerque – Les Moëres 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: | XDK / LFAK |
Airport Name: | Dunkerque – Les Moëres Airfield |
Location: | Dunkerque, France |
GPS Coordinates: | 51°2'31"N by 2°33'11"E |
Operator/Owner: | Syndicat Intercommunal des Dunes de Flandre |
Airport Type: | Restricted use |
Elevation: | -3 feet (-1 meters) |
# of Runways: | 1 |
View all routes: | Routes from XDK |
More Information: | XDK 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.
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
Facts about Dunkerque – Les Moëres Airfield (XDK):
- The furthest airport from Dunkerque – Les Moëres Airfield (XDK) is Chatham Islands (CHT), which is located 11,935 miles (19,207 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to Dunkerque – Les Moëres Airfield (XDK) is Ostend-Bruges International Airport (OST), which is located only 17 miles (28 kilometers) NE of XDK.
- Because of Dunkerque – Les Moëres Airfield's relatively low elevation of -3 feet, planes can take off or land at Dunkerque – Les Moëres 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.
- Dunkerque – Les Moëres Airfield (XDK) currently has only 1 runway.