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):

• Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
• Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
• 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.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".

Facts about Dublin Airport (DUB):

• 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.
• 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.
• 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.
• Dublin Airport handled 20,166,783 passengers last year.
• 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.
• Dublin Airport (DUB) has 2 runways.
• During the 1980s, major competition, especially on the Dublin–London routes, resulted in passenger numbers swelling to 5.1 million in 1989.
• The closest airport to Dublin Airport (DUB) is Kilkenny Airport (KKY), which is located 68 miles (110 kilometers) SW of DUB.
• 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.
• In addition to being known as "Dublin Airport", another name for DUB is "Aerfort Bhaile Átha Cliath".