Nonstop flight route between Portsmouth, New Hampshire, United States and Essex (near London), England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from PSM to STN:
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- About this route
- PSM Airport Information
- STN Airport Information
- Facts about PSM
- Facts about STN
- 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 STN
- List of Nearest Airports to STN
- Map of Furthest Airports from STN
- List of Furthest Airports from STN
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and London Stansted Airport (STN), Essex (near London), England, United Kingdom would travel a Great Circle distance of 3,238 miles (or 5,211 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 large distance between Portsmouth International Airport at Pease and London Stansted Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Portsmouth International Airport at Pease and London Stansted Airport. You'll see that it will travel the same route of the red line on this map!
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: | STN / EGSS |
Airport Name: | London Stansted Airport |
Location: | Essex (near London), England, United Kingdom |
GPS Coordinates: | 51°53'5"N by 0°14'6"E |
Area Served: | London, United Kingdom |
Operator/Owner: | Manchester Airports Group |
Airport Type: | Public |
Elevation: | 348 feet (106 meters) |
# of Runways: | 1 |
View all routes: | Routes from STN |
More Information: | STN Maps & Info |
Facts about Portsmouth International Airport at Pease (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.
- 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 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.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- 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.
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
Facts about London Stansted Airport (STN):
- A major expansion programme to the existing terminal took place between 2007 and 2009, adding nearly 5,900 m2 of floorspace to give space for additional baggage carousels, a new immigration and passport control hall and a hypostyle arrivals hall with improved facilities.
- Because of London Stansted Airport's relatively low elevation of 348 feet, planes can take off or land at London Stansted 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 airfield opened in 1943 and was used during the Second World War as RAF Stansted Mountfitchet by the Royal Air Force and the United States Army Air Forces as a bomber airfield and as a major maintenance depot.
- Stansted is the newest passenger airport of all the main London airports.
- London Stansted Airport handled 17,852,393 passengers last year.
- London Stansted Airport (STN) currently has only 1 runway.
- The furthest airport from London Stansted Airport (STN) is Chatham Islands (CHT), which is located 11,858 miles (19,084 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- During the 1960s, 1970s and early 1980s the Fire Service Training School was based on the eastern side of the airfield under the auspices of the Ministry of Transport and Civil Aviation, now the Civil Aviation Authority.
- The closest airport to London Stansted Airport (STN) is MDPGA Wethersfield (WXF), which is located only 13 miles (21 kilometers) ENE of STN.