Nonstop flight route between Knock, Ireland and Denver, Colorado, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Rocky Mountain Metropolitan Airport (BJC), Denver, Colorado, United States would travel a Great Circle distance of 4,286 miles (or 6,898 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 Rocky Mountain Metropolitan 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 Rocky Mountain Metropolitan 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):

• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• In November 2011 Ryanair announced flights to Beauvais-Tillé, Frankfurt Hahn, Bergamo-Orio al Serio and Girona-Costa Brava from March 2012.
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
• In 2005 the airport changed its name to Ireland West Airport Knock.
• 2007 was a notable year, with scheduled transatlantic services to New York and Boston commencing in May, operated by the now-defunct Flyglobespan.
• 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.
• Ireland West Airport Knock handled 665,000 passengers last year.
• 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.
• The installation of the Category II Instrument Landing System in April 2009 has resulted in a significant reduction in the number of flight diversions to other airports due to poor visibility – the airport is 200 metres above sea level.
• In 2008 a record 629,000 passengers used the airport, a 13% rise compared to the previous year.
• Ireland West Airport Knock (NOC) currently has only 1 runway.

Facts about Rocky Mountain Metropolitan Airport (BJC):

• The furthest airport from Rocky Mountain Metropolitan Airport (BJC) is Sir Gaëtan Duval Airport (RRG), which is located 10,886 miles (17,519 kilometers) away in Rodrigues Island, Mauritius.
• Rocky Mountain Metropolitan Airport (BJC) has 3 runways.
• Rocky Mountain Metropolitan Airport covers an area of 1,700 acres at an elevation of 5,673 feet above mean sea level.
• The closest airport to Rocky Mountain Metropolitan Airport (BJC) is Boulder Municipal Airport (WBU), which is located only 11 miles (17 kilometers) NNW of BJC.
• The airport was formerly a hub for Pet Airways before ceasing all flights in early 2013.
• Because of Rocky Mountain Metropolitan Airport's high elevation of 5,673 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BJC. Combined with a high temperature, this could make BJC a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.