Nonstop flight route between Fort Sill, Oklahoma, United States and Nelson Lagoon, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to NLG:
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- About this route
- FSI Airport Information
- NLG Airport Information
- Facts about FSI
- Facts about NLG
- 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 NLG
- List of Nearest Airports to NLG
- Map of Furthest Airports from NLG
- List of Furthest Airports from NLG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Nelson Lagoon Airport (NLG), Nelson Lagoon, Alaska, United States would travel a Great Circle distance of 3,248 miles (or 5,227 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 Nelson Lagoon 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 Nelson Lagoon 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: | NLG / PAOU |
Airport Names: |
|
Location: | Nelson Lagoon, Alaska, United States |
GPS Coordinates: | 56°0'27"N by 161°9'37"W |
Area Served: | Nelson Lagoon, Alaska |
Operator/Owner: | Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from NLG |
More Information: | NLG 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 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.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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.
Facts about Nelson Lagoon Airport (NLG):
- The closest airport to Nelson Lagoon Airport (NLG) is Port Moller Airport (PML), which is located 23 miles (37 kilometers) E of NLG.
- Nelson Lagoon Airport (NLG) currently has only 1 runway.
- Nelson Lagoon Airport has one runway designated 8/26 with a gravel surface measuring 4,000 by 75 feet.
- Because of Nelson Lagoon Airport's relatively low elevation of 14 feet, planes can take off or land at Nelson Lagoon 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 furthest airport from Nelson Lagoon Airport (NLG) is Cape Town International Airport (CPT), which is located 10,914 miles (17,564 kilometers) away in Cape Town, South Africa.
- In addition to being known as "Nelson Lagoon Airport", another name for NLG is "OUL".