Nonstop flight route between Fort Sill, Oklahoma, United States and Omak, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to OMK:
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- About this route
- FSI Airport Information
- OMK Airport Information
- Facts about FSI
- Facts about OMK
- 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 OMK
- List of Nearest Airports to OMK
- Map of Furthest Airports from OMK
- List of Furthest Airports from OMK
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Omak Airport (OMK), Omak, Washington, United States would travel a Great Circle distance of 1,441 miles (or 2,320 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 Omak 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: | OMK / KOMK |
Airport Names: |
|
Location: | Omak, Washington, United States |
GPS Coordinates: | 48°27'51"N by 119°31'5"W |
Area Served: | Omak, Washington, United States |
Airport Type: | Public |
Elevation: | 1305 feet (398 meters) |
# of Runways: | 1 |
View all routes: | Routes from OMK |
More Information: | OMK Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Post Field served as a base for flight training for the Air Service.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 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.
Facts about Omak Airport (OMK):
- The furthest airport from Omak Airport (OMK) is Tôlanaro Airport (FTU), which is located 10,660 miles (17,155 kilometers) away in Tôlanaro, Madagascar.
- The Omak Airport, a non-towered airport that covers an area of 153 acres of city-owned property and 325 acres overall at an elevation of 1,305 feet, is located on 202 Omak Airport Road in Riverside, 3 miles north of Omak's city centre, which is the municipality it primarily serves, situated off Washington State Route 20 and Washington State Route 97 on a mountainous and forested terrain.
- Omak Airport (OMK) currently has only 1 runway.
- In addition to being known as "Omak Airport", other names for OMK include "Omak Municipal Airport" and "Omak City Airport".
- Numerous aircraft took off after an air show celebration at the terminal, which contained a breakfast service for aircraft pilots and a dinner service later that day.
- The closest airport to Omak Airport (OMK) is Grand Forks Airport (ZGF), which is located 63 miles (101 kilometers) NE of OMK.
- A private business instructor offers flying lessons at the airfield, while Omak Aircraft Services is based on site and offers airframe and powerplant repairs.
- Food and snacks are available at this airport's terminal, as well as a medical facility, accommodation areas, administrative offices and hangar buildings maintained by the Omak City Council.
- The airport does not support commercial flights or charge non-commercial payments, but does provide three daily charter flights or general aviation services to other destinations from Monday to Friday which are commonly used for commuter purposes.