Nonstop flight route between Clinton, Oklahoma, United States and Harlingen, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from CSM to HRL:
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- About this route
- CSM Airport Information
- HRL Airport Information
- Facts about CSM
- Facts about HRL
- Map of Nearest Airports to CSM
- List of Nearest Airports to CSM
- Map of Furthest Airports from CSM
- List of Furthest Airports from CSM
- Map of Nearest Airports to HRL
- List of Nearest Airports to HRL
- Map of Furthest Airports from HRL
- List of Furthest Airports from HRL
About this route:
A direct, nonstop flight between Clinton-Sherman Industrial Airpark (CSM), Clinton, Oklahoma, United States and Valley International Airport (HRL), Harlingen, Texas, United States would travel a Great Circle distance of 636 miles (or 1,024 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 Clinton-Sherman Industrial Airpark and Valley International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | CSM / KCSM |
Airport Name: | Clinton-Sherman Industrial Airpark |
Location: | Clinton, Oklahoma, United States |
GPS Coordinates: | 35°20'22"N by 99°12'2"W |
Area Served: | Clinton, Oklahoma |
Operator/Owner: | Oklahoma Space Industry Development Authority |
Airport Type: | Public |
Elevation: | 1922 feet (586 meters) |
# of Runways: | 2 |
View all routes: | Routes from CSM |
More Information: | CSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | HRL / KHRL |
Airport Name: | Valley International Airport |
Location: | Harlingen, Texas, United States |
GPS Coordinates: | 26°13'37"N by 97°39'18"W |
Area Served: | Harlingen, Texas |
Operator/Owner: | City of Harlingen |
Airport Type: | Public |
Elevation: | 36 feet (11 meters) |
# of Runways: | 3 |
View all routes: | Routes from HRL |
More Information: | HRL Maps & Info |
Facts about Clinton-Sherman Industrial Airpark (CSM):
- Clinton-Sherman Industrial Airpark (CSM) has 2 runways.
- The airpark is at the site of a public airfield known as Clinton-Sherman Airport.
- The furthest airport from Clinton-Sherman Industrial Airpark (CSM) is Sir Gaëtan Duval Airport (RRG), which is located 10,925 miles (17,582 kilometers) away in Rodrigues Island, Mauritius.
- The United States Navy established a naval air station on 5,000 acres at this location in 1942 to train pilots during World War II.
- The closest airport to Clinton-Sherman Industrial Airpark (CSM) is Clinton Regional Airport (CLK), which is located 20 miles (33 kilometers) NE of CSM.
- "This is a tremendous opportunity for Oklahoma," said OSIDA Director Bill Khourie.
Facts about Valley International Airport (HRL):
- After the airport's closure by the military, it was turned over to the local government and converted to civil use as Valley International Airport after Hurricane Beulah flooded the original Harlingen civil airport in 1967.
- The closest airport to Valley International Airport (HRL) is Brownsville/South Padre Island International Airport (BRO), which is located 26 miles (42 kilometers) SSE of HRL.
- Valley International Airport (HRL) has 3 runways.
- The furthest airport from Valley International Airport (HRL) is Sir Gaëtan Duval Airport (RRG), which is located 11,151 miles (17,946 kilometers) away in Rodrigues Island, Mauritius.
- Because of Valley International Airport's relatively low elevation of 36 feet, planes can take off or land at Valley International 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.