Nonstop flight route between Fort Sill, Oklahoma, United States and Belmullet, Ireland:
Departure Airport:

Arrival Airport:

Distance from FSI to BLY:
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- About this route
- FSI Airport Information
- BLY Airport Information
- Facts about FSI
- Facts about BLY
- 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 BLY
- List of Nearest Airports to BLY
- Map of Furthest Airports from BLY
- List of Furthest Airports from BLY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Belmullet Aerodrome (BLY), Belmullet, Ireland would travel a Great Circle distance of 4,259 miles (or 6,855 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 Belmullet Aerodrome, 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 Belmullet Aerodrome. 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: | BLY / EIBT |
Airport Name: | Belmullet Aerodrome |
Location: | Belmullet, Ireland |
GPS Coordinates: | 54°13'22"N by 10°1'50"W |
Area Served: | Belmullet, Ireland |
Operator/Owner: | Comhar Iorrais Teo |
Airport Type: | Private |
Elevation: | 150 feet (46 meters) |
# of Runways: | 1 |
View all routes: | Routes from BLY |
More Information: | BLY Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
Facts about Belmullet Aerodrome (BLY):
- The closest airport to Belmullet Aerodrome (BLY) is Ireland West Airport Knock (NOC), which is located 54 miles (86 kilometers) ESE of BLY.
- The furthest airport from Belmullet Aerodrome (BLY) is Ryan's Creek Aerodrome (SZS), which is located 11,924 miles (19,190 kilometers) away in Stewart Island, New Zealand.
- Because of Belmullet Aerodrome's relatively low elevation of 150 feet, planes can take off or land at Belmullet 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.
- Belmullet Aerodrome (BLY) currently has only 1 runway.