Nonstop flight route between Portsmouth, Ohio, United States and St Athan, Wales, United Kingdom:

About this route:

A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and MoD St Athan (DGX), St Athan, Wales, United Kingdom would travel a Great Circle distance of 3,772 miles (or 6,070 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 Greater Portsmouth Regional Airport and MoD St Athan, 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 Greater Portsmouth Regional Airport and MoD St Athan. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Greater Portsmouth Regional Airport (PMH):

• 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 (PMH) currently has only 1 runway.
• Greater Portsmouth Regional Airport covers an area of 246 acres at an elevation of 663 feet above mean sea level.
• The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
• 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 MoD St Athan (DGX):

• In March 2004, however, DARA announced the loss of 550 jobs at St Athan as part of streamlining to make DARA more efficient and better able to compete with the private sector for lucrative aircraft repair contracts, but also because they lost out to a direct RAF bid for a contract to upgrade the air force's fleet of ageing Harrier jump jet aircraft.
• The MOD continued to negotiate the project with the Metrix Consortium, but the price rose several times, reaching £14 billion in mid-2009.
• During the war a dummy airfield was built using wood and cardboard a few miles west of the original airfield and successful efforts were made to hide the proper field.
• Because of MoD St Athan's relatively low elevation of 163 feet, planes can take off or land at MoD St Athan 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 MoD St Athan (DGX) is Cardiff Airport (CWL), which is located only 4 miles (6 kilometers) E of DGX.
• MOD St Athan is a large Ministry of Defence unit near the village of St Athan in the Vale of Glamorgan, southern Wales.
• RAF St Athan has been used to house a number of army units throughout its life and, in 2003, the 1st Battalion, Welsh Guards moved from Aldershot to St Athan - the first time they have been based in Wales since they were formed in 1915.
• After the war, airmen of the Airframe and Engine trades continued to train at St Athan, but in 1955 this training dispersed to RAF Kirkham and RAF Weeton.
• On 26 August 1993 an ATC civilian instructor was seriously injured and the RAF Volunteer Reserve pilot, Group Captain Roger Sweatman, was killed when their Chipmunk trainer, on an air experience flight, crashed after encountering difficulties during a simulated emergency low-height manoeuvre on take-off.
• The furthest airport from MoD St Athan (DGX) is Dunedin International Airport (DUD), which is located 11,960 miles (19,248 kilometers) away in Dunedin, Otago, New Zealand.
• MoD St Athan (DGX) currently has only 1 runway.