Nonstop flight route between Fort Sill, Oklahoma, United States and Fayetteville/Springdale, Arkansas, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to XNA:
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- About this route
- FSI Airport Information
- XNA Airport Information
- Facts about FSI
- Facts about XNA
- 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 XNA
- List of Nearest Airports to XNA
- Map of Furthest Airports from XNA
- List of Furthest Airports from XNA
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Northwest Arkansas Regional Airport (XNA), Fayetteville/Springdale, Arkansas, United States would travel a Great Circle distance of 256 miles (or 413 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 Henry Post Army Airfield and Northwest Arkansas Regional Airport, the route shown on this map most likely still appears to be a straight line.
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: | XNA / KXNA |
Airport Name: | Northwest Arkansas Regional Airport |
Location: | Fayetteville/Springdale, Arkansas, United States |
GPS Coordinates: | 36°16'54"N by 94°18'28"W |
Area Served: | Fayetteville / Springdale, Arkansas |
Operator/Owner: | Northwest Arkansas Regional Airport Authority |
Airport Type: | Public |
Elevation: | 1288 feet (393 meters) |
# of Runways: | 2 |
View all routes: | Routes from XNA |
More Information: | XNA Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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 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.
- 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.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- Post Field served as a base for flight training for the Air Service.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Northwest Arkansas Regional Airport (XNA):
- The airport recently completed a ticket counter expansion, and is planning two large warehouse additions.
- XNA opened in November 1998 as a replacement airport for commercial traffic previously served by Fayetteville's aging and inadequate Drake Field, which was undersized to serve the rapidly growing Northwest Arkansas region.
- The closest airport to Northwest Arkansas Regional Airport (XNA) is Smith Field (SLG), which is located only 12 miles (19 kilometers) WSW of XNA.
- Northwest Arkansas Regional Airport (XNA) has 2 runways.
- The furthest airport from Northwest Arkansas Regional Airport (XNA) is Margaret River Airport (MGV), which is located 10,773 miles (17,337 kilometers) away in Margaret River, Western Australia, Australia.