Nonstop flight route between Portsmouth, New Hampshire, United States and Mount Vernon, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from PSM to MVN:
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- About this route
- PSM Airport Information
- MVN Airport Information
- Facts about PSM
- Facts about MVN
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to MVN
- List of Nearest Airports to MVN
- Map of Furthest Airports from MVN
- List of Furthest Airports from MVN
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Mt. Vernon Airport (MVN), Mount Vernon, Illinois, United States would travel a Great Circle distance of 998 miles (or 1,606 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 Portsmouth International Airport at Pease and Mt. Vernon Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MVN / KMVN |
Airport Name: | Mt. Vernon Airport |
Location: | Mount Vernon, Illinois, United States |
GPS Coordinates: | 38°19'23"N by 88°51'30"W |
Operator/Owner: | Mount Vernon Airport Authority |
Airport Type: | Public |
Elevation: | 480 feet (146 meters) |
# of Runways: | 2 |
View all routes: | Routes from MVN |
More Information: | MVN Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
Facts about Mt. Vernon Airport (MVN):
- The furthest airport from Mt. Vernon Airport (MVN) is Margaret River Airport (MGV), which is located 11,070 miles (17,815 kilometers) away in Margaret River, Western Australia, Australia.
- Mt. Vernon Airport (MVN) has 2 runways.
- Because of Mt. Vernon Airport's relatively low elevation of 480 feet, planes can take off or land at Mt. Vernon 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 closest airport to Mt. Vernon Airport (MVN) is Salem–Leckrone Airport (SLO), which is located 23 miles (37 kilometers) NNW of MVN.