Nonstop flight route between Helena, Montana, United States and Derry, Northern Ireland, United Kingdom:
Departure Airport:
Arrival Airport:
Distance from HLN to LDY:
Share this route:
Jump to:
- About this route
- HLN Airport Information
- LDY Airport Information
- Facts about HLN
- Facts about LDY
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
- 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 Helena Regional Airport (HLN), Helena, Montana, United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 4,169 miles (or 6,709 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 Helena 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 Helena 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: | HLN / KHLN |
Airport Names: |
|
Location: | Helena, Montana, United States |
GPS Coordinates: | 46°36'24"N by 111°58'58"W |
Area Served: | Helena, Montana |
Operator/Owner: | Helena Regional Airport Authority |
Airport Type: | Public |
Elevation: | 3877 feet (1,182 meters) |
# of Runways: | 3 |
View all routes: | Routes from HLN |
More Information: | HLN 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 Helena Regional Airport (HLN):
- The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- Helena Regional Airport (HLN) has 3 runways.
- The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
Facts about City of Derry Airport (LDY):
- The Belfast to Derry single track railway line of Northern Ireland Railways passes close to but not across the tip of the runway at the North Eastern end.
- The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
- At the end of 2008, British Airways, operated by Loganair as a franchise agreement, ceased the Glasgow International route which had operated for 30 years, following the loss in July 2008 of their public service obligation route to Dublin.
- After the war the base remained a military establishment until the 1950s when the Ministry of Defence returned much of the land to the original landowners.
- The decrease in operational hours at the airport as a direct consequence of the challenging economic conditions have caused problems for Eglinton Flying Club and the helicopter flight training facility who in turn have threatened to leave the airport if the decisions are not reversed.
- 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.
- 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.
- In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
- A major redevelopment programme was undertaken by the Council from 1989 to 1993 with grant aid from the European Regional Development Fund.
- 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.
- City of Derry Airport handled 384,973 passengers last year.
- City of Derry Airport (LDY) currently has only 1 runway.
- The airport is to develop further Ryanair routes from the airport to European cities such as Barcelona, Paris, Frankfurt and Milan.
- In January 2009 the council appointed Albert Harrison, the former head of Belfast International Airport, as the new manager of the airport.