Nonstop flight route between Springfield, Illinois, United States and St Athan, Wales, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from SPI to DGX:
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- About this route
- SPI Airport Information
- DGX Airport Information
- Facts about SPI
- Facts about DGX
- Map of Nearest Airports to SPI
- List of Nearest Airports to SPI
- Map of Furthest Airports from SPI
- List of Furthest Airports from SPI
- Map of Nearest Airports to DGX
- List of Nearest Airports to DGX
- Map of Furthest Airports from DGX
- List of Furthest Airports from DGX
About this route:
A direct, nonstop flight between Abraham Lincoln Capital Airport (SPI), Springfield, Illinois, United States and MoD St Athan (DGX), St Athan, Wales, United Kingdom would travel a Great Circle distance of 3,997 miles (or 6,433 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 Abraham Lincoln Capital 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 Abraham Lincoln Capital 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:
IATA / ICAO Codes: | SPI / KSPI |
Airport Name: | Abraham Lincoln Capital Airport |
Location: | Springfield, Illinois, United States |
GPS Coordinates: | 39°50'39"N by 89°40'41"W |
Area Served: | Springfield, Illinois |
Operator/Owner: | Springfield Airport Authority |
Airport Type: | Public |
Elevation: | 598 feet (182 meters) |
# of Runways: | 3 |
View all routes: | Routes from SPI |
More Information: | SPI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | DGX / EGDX |
Airport Name: | MoD St Athan |
Location: | St Athan, Wales, United Kingdom |
GPS Coordinates: | 51°24'16"N by 3°26'8"W |
Operator/Owner: | Ministry of Defence |
Airport Type: | Military |
Elevation: | 163 feet (50 meters) |
# of Runways: | 1 |
View all routes: | Routes from DGX |
More Information: | DGX Maps & Info |
Facts about Abraham Lincoln Capital Airport (SPI):
- The furthest airport from Abraham Lincoln Capital Airport (SPI) is Margaret River Airport (MGV), which is located 11,013 miles (17,724 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Abraham Lincoln Capital Airport's relatively low elevation of 598 feet, planes can take off or land at Abraham Lincoln Capital 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 airport has a Subway, a gift shop, an automated teller machine, TV and a lounge.
- The 183 FW remains in place at Capital Airport AGS minus a flying mission while the U.S.
- Abraham Lincoln Capital Airport (SPI) has 3 runways.
- The closest airport to Abraham Lincoln Capital Airport (SPI) is Decatur Airport (DEC), which is located 43 miles (69 kilometers) E of SPI.
- The airport covers 2,300 acres at an elevation of 598 feet.
- Allegiant Air is the only airline with mainline jets, McDonnell Douglas MD-80s.
Facts about MoD St Athan (DGX):
- In 2009 building work was due to commence on a new defence training academy with its heart at St Athan.
- 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.
- St Athan also became the major RAF maintenance base for Vulcan, Victor, Buccaner, Phantom, Harrier, Tornado, Jaguar, Hawk and VC10 aircraft, originally under direct RAF control, but latterly under the auspices of the Defence Aviation Repair Agency.
- RAF St Athan was also home for the Royal Air Force Administrative Apprentice Training School.
- 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.
- 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 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 (DGX) currently has only 1 runway.
- 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.
- 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.