Nonstop flight route between Fort Sill, Oklahoma, United States and Baloi, Lanao del Norte, Philippines:
Departure Airport:

Arrival Airport:

Distance from FSI to IGN:
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- About this route
- FSI Airport Information
- IGN Airport Information
- Facts about FSI
- Facts about IGN
- 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 IGN
- List of Nearest Airports to IGN
- Map of Furthest Airports from IGN
- List of Furthest Airports from IGN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Maria Cristina Airport (IGN), Baloi, Lanao del Norte, Philippines would travel a Great Circle distance of 8,378 miles (or 13,483 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 Maria Cristina 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 Maria Cristina 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: | IGN / RPMI |
Airport Names: |
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Location: | Baloi, Lanao del Norte, Philippines |
GPS Coordinates: | 8°7'49"N by 124°12'53"E |
Area Served: | Iligan City |
Operator/Owner: | Air Transportation Office |
Airport Type: | Public |
Elevation: | 1300 feet (396 meters) |
# of Runways: | 1 |
View all routes: | Routes from IGN |
More Information: | IGN Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
Facts about Maria Cristina Airport (IGN):
- The furthest airport from Maria Cristina Airport (IGN) is Piloto Osvaldo Marques Dias Airport (AFL), which is nearly antipodal to Maria Cristina Airport (meaning Maria Cristina Airport is almost on the exact opposite side of the Earth from Piloto Osvaldo Marques Dias Airport), and is located 12,315 miles (19,819 kilometers) away in Alta Floresta, Brazil.
- The closest airport to Maria Cristina Airport (IGN) is Labo Airport (OZC), which is located 26 miles (41 kilometers) W of IGN.
- Located some 1,300 feet or 396 meters above sea level, Maria Cristina Airport has the distinction of being the highest airport in Mindanao and the second-highest in the Philippines, next to Loakan Airport in Baguio City.
- The opening of Laguindingan International Airport in 2011 which is located at Laguindingan town in Misamis Oriental, It is expected to augment the city's need for a nearby airport as the new airport is only 65 kilometers away or at most 35 to 40 minutes away from Iligan.
- Maria Cristina Airport, also known as Iligan Airport, is an airport serving the general area of Iligan City, located in the province of Lanao del Norte in the Philippines.
- In addition to being known as "Maria Cristina Airport", another name for IGN is "Paliparan ng Maria Cristina Tugpahanan sa Maria Cristina".
- Maria Cristina Airport (IGN) currently has only 1 runway.