Nonstop flight route between Portsmouth, Ohio, United States and Clinton, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from PMH to CSM:
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- About this route
- PMH Airport Information
- CSM Airport Information
- Facts about PMH
- Facts about CSM
- Map of Nearest Airports to PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
- Map of Nearest Airports to CSM
- List of Nearest Airports to CSM
- Map of Furthest Airports from CSM
- List of Furthest Airports from CSM
About this route:
A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Clinton-Sherman Industrial Airpark (CSM), Clinton, Oklahoma, United States would travel a Great Circle distance of 932 miles (or 1,500 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 Greater Portsmouth Regional Airport and Clinton-Sherman Industrial Airpark, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | PMH / KPMH |
Airport Name: | Greater Portsmouth Regional Airport |
Location: | Portsmouth, Ohio, United States |
GPS Coordinates: | 38°50'26"N by 82°50'49"W |
Area Served: | Portsmouth, Ohio |
Operator/Owner: | Scioto County Airport Authority |
Airport Type: | Public |
Elevation: | 663 feet (202 meters) |
# of Runways: | 1 |
View all routes: | Routes from PMH |
More Information: | PMH Maps & Info |
Arrival 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 |
Facts about Greater Portsmouth Regional Airport (PMH):
- The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- The furthest airport from Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
- Greater Portsmouth Regional Airport covers an area of 246 acres at an elevation of 663 feet above mean sea level.
- The airport offers fuel services along with a small snack bar, a couple of hangars, mechanics, and pilot snooze room.
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth 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.
Facts about Clinton-Sherman Industrial Airpark (CSM):
- Clinton-Sherman Industrial Airpark (CSM) has 2 runways.
- The closest airport to Clinton-Sherman Industrial Airpark (CSM) is Clinton Regional Airport (CLK), which is located 20 miles (33 kilometers) NE of CSM.
- 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 receipt of a launch site operator license gives Oklahoma a good position in the nascent space tourism industry — a market which is also being targeted by California, New Mexico, Florida and Wisconsin, as well as Singapore and the United Arab Emirates.
- 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.