Nonstop flight route between Marshall, Texas, United States and Norman, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from ASL to OUN:
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- About this route
- ASL Airport Information
- OUN Airport Information
- Facts about ASL
- Facts about OUN
- Map of Nearest Airports to ASL
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- Map of Furthest Airports from ASL
- List of Furthest Airports from ASL
- Map of Nearest Airports to OUN
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- List of Furthest Airports from OUN
About this route:
A direct, nonstop flight between Harrison County Airport (ASL), Marshall, Texas, United States and University of Oklahoma Max Westheimer Airport (OUN), Norman, Oklahoma, United States would travel a Great Circle distance of 261 miles (or 421 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 Harrison County Airport and University of Oklahoma Max Westheimer Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ASL / KASL |
Airport Name: | Harrison County Airport |
Location: | Marshall, Texas, United States |
GPS Coordinates: | 32°31'14"N by 94°18'28"W |
Area Served: | Marshall, Texas |
Operator/Owner: | Harrison County |
Airport Type: | Public |
Elevation: | 357 feet (109 meters) |
# of Runways: | 2 |
View all routes: | Routes from ASL |
More Information: | ASL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OUN / KOUN |
Airport Name: | University of Oklahoma Max Westheimer Airport |
Location: | Norman, Oklahoma, United States |
GPS Coordinates: | 35°14'44"N by 97°28'19"W |
Area Served: | Norman, Oklahoma |
Operator/Owner: | University of Oklahoma |
Airport Type: | Public |
Elevation: | 1182 feet (360 meters) |
# of Runways: | 2 |
View all routes: | Routes from OUN |
More Information: | OUN Maps & Info |
Facts about Harrison County Airport (ASL):
- In the year ending May 28, 2007 the airport had 16,200 general aviation aircraft operations, average 44 per day.
- The closest airport to Harrison County Airport (ASL) is East Texas Regional Airport (GGG), which is located 25 miles (41 kilometers) WSW of ASL.
- Because of Harrison County Airport's relatively low elevation of 357 feet, planes can take off or land at Harrison County 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 Harrison County Airport (ASL) is Cocos (Keeling) Island Airport (CCK), which is located 10,865 miles (17,485 kilometers) away in Cocos Islands, Australia.
- Harrison County Airport is a public airport three miles southeast of Marshall, Texas, in Harrison County, which owns it.
- Harrison County Airport (ASL) has 2 runways.
- Trans-Texas DC-3s stopped there until 1963.
Facts about University of Oklahoma Max Westheimer Airport (OUN):
- The closest airport to University of Oklahoma Max Westheimer Airport (OUN) is Will Rogers World Airport (OKC), which is located only 13 miles (20 kilometers) NW of OUN.
- The furthest airport from University of Oklahoma Max Westheimer Airport (OUN) is Sir Gaëtan Duval Airport (RRG), which is located 10,853 miles (17,467 kilometers) away in Rodrigues Island, Mauritius.
- University of Oklahoma Max Westheimer Airport (OUN) has 2 runways.
- The airport covers 727 acres at an elevation of 1,182 feet.
- Built as a civil airport on land donated by the Nuestadt family in the name of their uncle Max Westheimer to the University of Oklahoma and land from the city of Norman, Oklahoma, it was taken over by the U.S.