Nonstop flight route between Helena, Montana, United States and Dublin, Ireland:

About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Dublin Airport (DUB), Dublin, Ireland would travel a Great Circle distance of 4,269 miles (or 6,871 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 Dublin 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 Dublin Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Helena Regional Airport (HLN):

• 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.
• 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.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• 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.

Facts about Dublin Airport (DUB):

• Dublin Airport handled 20,166,783 passengers last year.
• In addition to being known as "Dublin Airport", another name for DUB is "Aerfort Bhaile Átha Cliath".
• Dublin Airport (DUB) has 2 runways.
• In September 2011, Emirates announced that from 9 January 2012 it would begin a new daily direct service to Dubai, which will be year-round and will operate from the new Terminal 2.
• The advent of wide-body aircraft posed opportunities and challenges for aviation.
• Upon the outbreak of World War II, services were severely restricted at Dublin Airport until late 1945 and the only international scheduled route operated during this time was by Aer Lingus to Liverpool.
• United States border preclearance services are available at the airport for US-bound passengers, making Dublin one of only two European airports with this facility along with Shannon.
• The DAA has ambitious long-haul expansion plans and has successfully added new routes to North America and the Middle East in recent years.
• Because of Dublin Airport's relatively low elevation of 242 feet, planes can take off or land at Dublin 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 closest airport to Dublin Airport (DUB) is Kilkenny Airport (KKY), which is located 68 miles (110 kilometers) SW of DUB.
• Terminal 2 is a 75,000 m2 terminal and pier which provides 19 air bridges for aircraft and is capable of handling 15 million passengers annually, thereby allowing the airport to handle 35 million passengers a year.
• The airport has an extensive short and medium haul network, served by an array of carriers as well as some intercontinental routes focused in the Middle East and the US.
• The furthest airport from Dublin Airport (DUB) is Ryan's Creek Aerodrome (SZS), which is located 11,922 miles (19,187 kilometers) away in Stewart Island, New Zealand.