Nonstop flight route between Knock, Ireland and Great Falls, Montana, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Great Falls International Airport (GTF), Great Falls, Montana, United States would travel a Great Circle distance of 4,104 miles (or 6,604 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 Ireland West Airport Knock and Great Falls International 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 Ireland West Airport Knock and Great Falls International 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 Ireland West Airport Knock (NOC):

• The furthest airport from Ireland West Airport Knock (NOC) is Ryan's Creek Aerodrome (SZS), which is located 11,934 miles (19,206 kilometers) away in Stewart Island, New Zealand.
• Because of Ireland West Airport Knock's relatively low elevation of 665 feet, planes can take off or land at Ireland West Airport Knock 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.
• It was voted Ireland's best regional airport in 2006 and 2009 by the Chambers of Commerce of Ireland.
• In 2011, the month of August was the busiest in the airport's history with 84,052 passengers.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
• 2007 was a notable year, with scheduled transatlantic services to New York and Boston commencing in May, operated by the now-defunct Flyglobespan.
• Ireland West Airport Knock handled 665,000 passengers last year.
• Ireland West Airport Knock (NOC) currently has only 1 runway.

Facts about Great Falls International Airport (GTF):

• Great Falls has had airline flights since the 1930s.
• 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 143,811 passenger boardings in calendar year 2008, 146,438 in 2009 and 155,204 in 2010.
• The closest airport to Great Falls International Airport (GTF) is Malmstrom Air Force Base (GFA), which is located only 9 miles (14 kilometers) E of GTF.
• Great Falls International Airport (GTF) has 3 runways.
• The furthest airport from Great Falls International Airport (GTF) is Sir Gaëtan Duval Airport (RRG), which is located 10,498 miles (16,896 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Great Falls International Airport", another name for GTF is "(former Great Falls Army Airfield)".