Nonstop flight route between Watertown, South Dakota, United States and Derry, Northern Ireland, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from ATY to LDY:
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- About this route
- ATY Airport Information
- LDY Airport Information
- Facts about ATY
- Facts about LDY
- Map of Nearest Airports to ATY
- List of Nearest Airports to ATY
- Map of Furthest Airports from ATY
- List of Furthest Airports from ATY
- Map of Nearest Airports to LDY
- List of Nearest Airports to LDY
- Map of Furthest Airports from LDY
- List of Furthest Airports from LDY
About this route:
A direct, nonstop flight between Watertown Regional Airport (ATY), Watertown, South Dakota, United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 3,775 miles (or 6,076 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 Watertown Regional Airport and City of Derry 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 Watertown Regional Airport and City of Derry Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ATY / KATY |
Airport Names: |
|
Location: | Watertown, South Dakota, United States |
GPS Coordinates: | 44°54'50"N by 97°9'16"W |
Area Served: | Watertown, South Dakota |
Operator/Owner: | City of Watertown |
Airport Type: | Public |
Elevation: | 1749 feet (533 meters) |
# of Runways: | 2 |
View all routes: | Routes from ATY |
More Information: | ATY Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | LDY / EGAE |
Airport Names: |
|
Location: | Derry, Northern Ireland, United Kingdom |
GPS Coordinates: | 55°2'34"N by 7°9'42"W |
Area Served: | Derry, United Kingdom |
Operator/Owner: | Derry City Council |
Airport Type: | Public |
Elevation: | 23 feet (7 meters) |
# of Runways: | 1 |
View all routes: | Routes from LDY |
More Information: | LDY Maps & Info |
Facts about Watertown Regional Airport (ATY):
- The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
- In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
- During World War II the airfield was used by the United States Army Air Forces.
- Watertown Regional Airport (ATY) has 2 runways.
- B-17 Flying Fortress and B-24 Liberator units underwent advanced training before going overseas.
Facts about City of Derry Airport (LDY):
- As of April 2010, it has been reported that the airport has emerged from passenger recession, with passenger numbers released for February of the same year showing an increase over that of the same period for the year before.
- A major redevelopment programme was undertaken by the Council from 1989 to 1993 with grant aid from the European Regional Development Fund.
- City of Derry Airport handled 384,973 passengers last year.
- In mid-2009 work commenced on dualling the A2 from Maydown to Eglinton and the airport, which now provides a high speed dual carriageway connection to the city.
- In May 2006, the European Commission gave its approval for the British and Irish governments to invest €15 million in the airport.
- Because of City of Derry Airport's relatively low elevation of 23 feet, planes can take off or land at City of Derry 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 furthest airport from City of Derry Airport (LDY) is Ryan's Creek Aerodrome (SZS), which is located 11,838 miles (19,051 kilometers) away in Stewart Island, New Zealand.
- The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
- In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
- City of Derry Airport (LDY) currently has only 1 runway.