Nonstop flight route between Fort Sill, Oklahoma, United States and Fiumicino (near Rome), Italy:
Departure Airport:

Arrival Airport:

Distance from FSI to FCO:
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- About this route
- FSI Airport Information
- FCO Airport Information
- Facts about FSI
- Facts about FCO
- 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 FCO
- List of Nearest Airports to FCO
- Map of Furthest Airports from FCO
- List of Furthest Airports from FCO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Fiumicino – Leonardo da Vinci International Airport (FCO), Fiumicino (near Rome), Italy would travel a Great Circle distance of 5,571 miles (or 8,966 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 Fiumicino – Leonardo da Vinci International 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 Fiumicino – Leonardo da Vinci International 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: | FCO / LIRF |
Airport Names: |
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Location: | Fiumicino (near Rome), Italy |
GPS Coordinates: | 41°48'1"N by 12°14'20"E |
Area Served: | Rome, Italy |
Operator/Owner: | Aeroporti di Roma SpA |
Airport Type: | Public |
Elevation: | 13 feet (4 meters) |
# of Runways: | 4 |
View all routes: | Routes from FCO |
More Information: | FCO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- 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.
Facts about Fiumicino – Leonardo da Vinci International Airport (FCO):
- The furthest airport from Fiumicino – Leonardo da Vinci International Airport (FCO) is Chatham Islands (CHT), which is located 11,975 miles (19,272 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Because of Fiumicino – Leonardo da Vinci International Airport's relatively low elevation of 13 feet, planes can take off or land at Fiumicino – Leonardo da Vinci International 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.
- In addition to being known as "Fiumicino – Leonardo da Vinci International Airport", another name for FCO is "Fiumicino – Aeroporto Internazionale Leonardo da Vinci".
- Fiumicino – Leonardo da Vinci International Airport (FCO) has 4 runways.
- The closest airport to Fiumicino – Leonardo da Vinci International Airport (FCO) is Ciampino–G. B. Pastine International Airport (CIA), which is located only 18 miles (30 kilometers) E of FCO.
- Fiumicino – Leonardo da Vinci International Airport handled 36,166,345 passengers last year.
- The airport serves as a hub for Alitalia, the largest Italian airline, and Vueling, a Spanish low-cost carrier owned by International Airlines Group.
- From the 1960s until the 1980s, the airport experienced significant aircraft hijackings as well as being the scene of two major terrorist attacks and the port of origin for an aircraft bombing in flight—some engendered by the Israeli-Palestinian conflict.