Nonstop flight route between San Diego, California, United States and St Athan, Wales, United Kingdom:

About this route:

A direct, nonstop flight between Montgomery Field (MYF), San Diego, California, United States and MoD St Athan (DGX), St Athan, Wales, United Kingdom would travel a Great Circle distance of 5,369 miles (or 8,641 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 Montgomery Field 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 Montgomery Field 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 Montgomery Field (MYF):

• In addition to being known as "Montgomery Field", another name for MYF is "Gibbs AF Auxiliary Field".
• Because of Montgomery Field's relatively low elevation of 427 feet, planes can take off or land at Montgomery Field 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.
• After the war the airport returned to civil control.
• The closest airport to Montgomery Field (MYF) is MCAS Miramar, (NKX), which is located only 4 miles (6 kilometers) N of MYF.
• Montgomery Field (MYF) has 3 runways.
• The furthest airport from Montgomery Field (MYF) is Sir Gaëtan Duval Airport (RRG), which is located 11,534 miles (18,562 kilometers) away in Rodrigues Island, Mauritius.

Facts about MoD St Athan (DGX):

• MoD St Athan (DGX) currently has only 1 runway.
• 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.
• 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.
• The MOD continued to negotiate the project with the Metrix Consortium, but the price rose several times, reaching £14 billion in mid-2009.
• The training to be carried out at St Athan was to be specialist phase 2 and phase 3 engineering courses of the Royal Navy, Army and Royal Air Force.
• In March 2003 it was confirmed that a new hi-tech maintenance centre would be built, creating 3,300 jobs.
• The only squadrons to operate out of St Athan on a regular basis are the University of Wales Air Squadron, flying Grob Tutors and No 634 Volunteer Gliding Squadron using Vigilant T.1s.
• The last aircraft to be serviced at St Athan, a Vickers VC10, departed the site on 23 February 2012.
• 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.