Nonstop flight route between St Athan, Wales, United Kingdom and Billings, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from DGX to BIL:
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- About this route
- DGX Airport Information
- BIL Airport Information
- Facts about DGX
- Facts about BIL
- Map of Nearest Airports to DGX
- List of Nearest Airports to DGX
- Map of Furthest Airports from DGX
- List of Furthest Airports from DGX
- Map of Nearest Airports to BIL
- List of Nearest Airports to BIL
- Map of Furthest Airports from BIL
- List of Furthest Airports from BIL
About this route:
A direct, nonstop flight between MoD St Athan (DGX), St Athan, Wales, United Kingdom and Billings Logan International Airport (BIL), Billings, Montana, United States would travel a Great Circle distance of 4,384 miles (or 7,055 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 MoD St Athan and Billings Logan International Airport, 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 MoD St Athan and Billings Logan International Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | BIL / KBIL |
Airport Name: | Billings Logan International Airport |
Location: | Billings, Montana, United States |
GPS Coordinates: | 45°48'28"N by 108°32'34"W |
Area Served: | Billings, Montana |
Operator/Owner: | City of Billings |
Airport Type: | Public |
Elevation: | 3652 feet (1,113 meters) |
# of Runways: | 3 |
View all routes: | Routes from BIL |
More Information: | BIL Maps & Info |
Facts about MoD St Athan (DGX):
- The station officially opened as RAF St Athan on 1 September 1938 and the first unit to take up residence was No 4 School of Technical Training.
- The two cadet passengers were cousins and were named as Katie Jo Davies, 15, and Nikitta Walters, 14.
- The closest airport to MoD St Athan (DGX) is Cardiff Airport (CWL), which is located only 4 miles (6 kilometers) E of DGX.
- 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.
- 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.
- In 2006, the Special Forces Support Group was raised at St Athan and the Welsh Guards returned to London.
- 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.
- 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.
- During the 1960s, a driving school was established.
- The new academy was claimed to create up to 5000 jobs at St Athan with a £14 billion investment over 25 years with an estimated £57.4 million spent into the local economy.
Facts about Billings Logan International Airport (BIL):
- Billings Logan International Airport (BIL) has 3 runways.
- Billings Logan International Airport handled 899,302 passengers last year.
- The name changed from the Billings Municipal Airport to Billings Logan Field in 1957, after Dick Logan, the airport manager, died.
- The closest airport to Billings Logan International Airport (BIL) is Roundup Airport (RPX), which is located 46 miles (74 kilometers) N of BIL.
- In 1927 The City of Billings approved $5,000 and 400 acres on top of the Rims to build a runway.
- The furthest airport from Billings Logan International Airport (BIL) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,025 kilometers) away in Rodrigues Island, Mauritius.