Nonstop flight route between Helena, Montana, United States and Derry, Northern Ireland, United Kingdom:
Departure Airport:
Arrival Airport:
Distance from HLN to LDY:
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- 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 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.
- Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- 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.
Facts about City of Derry Airport (LDY):
- City of Derry Airport (LDY) currently has only 1 runway.
- 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.
- 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.
- In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
- The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
- City of Derry Airport handled 384,973 passengers last year.
- A major redevelopment programme was undertaken by the Council from 1989 to 1993 with grant aid from the European Regional Development Fund.
- The airport has its origins in World War II.
- A report by Ilex-URC in September 2010, pointed out that there is intentions to grow and increase the number of scheduled routes out of the airport from 7 as of 2010, to 10 by 2015, and 15 by 2020.