Nonstop flight route between Marshall, Texas, United States and Columbia, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from ASL to COU:
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- About this route
- ASL Airport Information
- COU Airport Information
- Facts about ASL
- Facts about COU
- Map of Nearest Airports to ASL
- List of Nearest Airports to ASL
- Map of Furthest Airports from ASL
- List of Furthest Airports from ASL
- Map of Nearest Airports to COU
- List of Nearest Airports to COU
- Map of Furthest Airports from COU
- List of Furthest Airports from COU
About this route:
A direct, nonstop flight between Harrison County Airport (ASL), Marshall, Texas, United States and Columbia Regional Airport (COU), Columbia, Missouri, United States would travel a Great Circle distance of 451 miles (or 725 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 Columbia Regional 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: | COU / KCOU |
Airport Name: | Columbia Regional Airport |
Location: | Columbia, Missouri, United States |
GPS Coordinates: | 38°49'5"N by 92°13'10"W |
Area Served: | Columbia, Missouri |
Operator/Owner: | City of Columbia |
Airport Type: | Public |
Elevation: | 889 feet (271 meters) |
# of Runways: | 2 |
View all routes: | Routes from COU |
More Information: | COU Maps & Info |
Facts about Harrison County Airport (ASL):
- 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.
- 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.
Facts about Columbia Regional Airport (COU):
- Columbia Regional Airport (COU) has 2 runways.
- Because of Columbia Regional Airport's relatively low elevation of 889 feet, planes can take off or land at Columbia Regional 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.
- Prior to 2001 service was operated by Trans World Express using Jetstream 41 aircraft to St.
- The closest airport to Columbia Regional Airport (COU) is Jefferson City Memorial Airport (JEF), which is located only 16 miles (26 kilometers) SSE of COU.
- In 2008, Northwest Airlink replaced US Airways Express using Saab 340 aircraft with service to Memphis.
- The furthest airport from Columbia Regional Airport (COU) is Margaret River Airport (MGV), which is located 10,886 miles (17,519 kilometers) away in Margaret River, Western Australia, Australia.
- The 2013 Federal sequester will result in the closure of the airport's contract control tower and will require pilots to rely on air traffic controllers from other area airports.