Nonstop flight route between Reading, Pennsylvania, United States and St Athan, Wales, United Kingdom:

About this route:

A direct, nonstop flight between Reading Regional Airport (RDG), Reading, Pennsylvania, United States and MoD St Athan (DGX), St Athan, Wales, United Kingdom would travel a Great Circle distance of 3,422 miles (or 5,508 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 Reading 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 Reading 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 Reading Regional Airport (RDG):

• In addition to being known as "Reading Regional Airport", another name for RDG is "Carl A. Spaatz FieldReading Army Airfield".
• Reading Regional Airport (RDG) has 2 runways.
• The closest airport to Reading Regional Airport (RDG) is Heritage Field (PTW), which is located 24 miles (38 kilometers) ESE of RDG.
• The furthest airport from Reading Regional Airport (RDG) is Margaret River Airport (MGV), which is located 11,683 miles (18,802 kilometers) away in Margaret River, Western Australia, Australia.
• Southwest Airlines no longer operates in Reading Airport.
• On 1 June 1944 the 309th Air Base Squadron was re-designated the 85th Army Air Force Base Unit.
• Reading Army Airfield opened on 1 June 1943, with the 309th Base Headquarters and Air Base Squadron as its host unit.
• Because of Reading Regional Airport's relatively low elevation of 344 feet, planes can take off or land at Reading 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):

• 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.
• In 2009 building work was due to commence on a new defence training academy with its heart at St Athan.
• The closest airport to MoD St Athan (DGX) is Cardiff Airport (CWL), which is located only 4 miles (6 kilometers) E of DGX.
• 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 MOD continued to negotiate the project with the Metrix Consortium, but the price rose several times, reaching £14 billion in mid-2009.
• 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.
• MoD St Athan (DGX) currently has only 1 runway.