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

Arrival Airport:

Distance from STN to PSM:
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- About this route
- STN Airport Information
- PSM Airport Information
- Facts about STN
- Facts about 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
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
About this route:
A direct, nonstop flight between London Stansted Airport (STN), Essex (near London), England, United Kingdom and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States 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 London Stansted Airport and Portsmouth International Airport at Pease, 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 London Stansted Airport and Portsmouth International Airport at Pease. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
Facts about London Stansted Airport (STN):
- After the withdrawal of the Americans on 12 August 1945, Stansted was taken over by the Air Ministry and used by No.
- 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.
- In 2007 passenger numbers peaked at nearly 24 million, but then declined for 5 years and in 2012 the total was around 17.5 million.
- London Stansted Airport handled 17,852,393 passengers last year.
- Stansted also had scheduled and charter flights to Toronto, Montreal and Vancouver, but these flights to Canada have now ceased.
- London Stansted Airport (STN) currently has only 1 runway.
- 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.
- Stansted is the newest passenger airport of all the main London airports.
- The closest airport to London Stansted Airport (STN) is MDPGA Wethersfield (WXF), which is located only 13 miles (21 kilometers) ENE of STN.
- 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.
Facts about Portsmouth International Airport at Pease (PSM):
- It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
- 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.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- 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 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 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.