Nonstop flight route between Portland, Maine, United States and Clinton, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from PWM to CSM:
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- About this route
- PWM Airport Information
- CSM Airport Information
- Facts about PWM
- Facts about CSM
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
- 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 Portland International Jetport (PWM), Portland, Maine, United States and Clinton-Sherman Industrial Airpark (CSM), Clinton, Oklahoma, United States would travel a Great Circle distance of 1,634 miles (or 2,629 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 Portland International Jetport 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: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM 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 Portland International Jetport (PWM):
- Peoplexpress Airlines arrived in 1983, the first jet competitor to Northeast/Delta at PWM.
- In 1972 Northeast Airlines was bought by Delta Air Lines which retained its routes to Bangor, Boston, and New York.
- In 2004 Runway 11/29 was lengthened to 7,200 feet.
- Portland International Jetport (PWM) has 2 runways.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- That year regional Air New England began service in Portland, competing with Northeast Airlines intrastate and between Portland and Boston.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
- Some service began to return as the industry's economics improved in 2005 and 2006.
Facts about Clinton-Sherman Industrial Airpark (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 closest airport to Clinton-Sherman Industrial Airpark (CSM) is Clinton Regional Airport (CLK), which is located 20 miles (33 kilometers) NE of CSM.
- The airpark is at the site of a public airfield known as Clinton-Sherman Airport.
- Armadillo Aerospace conducted flight test Activities at the Oklahoma Spaceport in 2004 through 2009, including tests of a VTVL Lander and a Rocket Racer for the Rocket Racing League.
- Clinton-Sherman Industrial Airpark (CSM) has 2 runways.