Nonstop flight route between Merritt Island, Florida, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from COI to FSI:
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- About this route
- COI Airport Information
- FSI Airport Information
- Facts about COI
- Facts about FSI
- Map of Nearest Airports to COI
- List of Nearest Airports to COI
- Map of Furthest Airports from COI
- List of Furthest Airports from COI
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Merritt Island Airport (COI), Merritt Island, Florida, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,129 miles (or 1,817 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 relatively short distance between Merritt Island Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | COI / KCOI |
Airport Name: | Merritt Island Airport |
Location: | Merritt Island, Florida, United States |
GPS Coordinates: | 28°20'30"N by 80°41'8"W |
Operator/Owner: | Titusville-Cocoa Airport Authority |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from COI |
More Information: | COI Maps & Info |
Arrival 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 |
Facts about Merritt Island Airport (COI):
- Merritt Island Airport (COI) currently has only 1 runway.
- a north-south strip measuring approximately 1,800 feet in length.
- Because of Merritt Island Airport's relatively low elevation of 7 feet, planes can take off or land at Merritt Island 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.
- The closest airport to Merritt Island Airport (COI) is Patrick Air Force Base (COF), which is located only 9 miles (14 kilometers) SSE of COI.
- The furthest airport from Merritt Island Airport (COI) is Shark Bay Airport (MJK), which is located 11,544 miles (18,578 kilometers) away in Monkey Mia, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.