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

About this route:

A direct, nonstop flight between Yampa Valley Airport (HDN), Hayden, Colorado, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 4,330 miles (or 6,968 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 Yampa Valley Airport and Ireland West Airport Knock, 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 Yampa Valley Airport and Ireland West Airport Knock. 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 Yampa Valley Airport (HDN):

• Because of Yampa Valley Airport's high elevation of 6,606 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDN. Combined with a high temperature, this could make HDN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Yampa Valley Airport (HDN) is Sir Gaëtan Duval Airport (RRG), which is located 10,901 miles (17,543 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Yampa Valley Airport", another name for HDN is "Yampa Valley Regional Airport".
• The closest airport to Yampa Valley Airport (HDN) is Craig–Moffat Airport (CIG), which is located only 16 miles (26 kilometers) W of HDN.
• The Yampa Valley Airport recently completed Phase II of a project that expanded the terminal, apron and parking lots.
• Yampa Valley Airport (HDN) currently has only 1 runway.

Facts about Ireland West Airport Knock (NOC):

• On 31 October 2013, in response to the scrapping of the Irish travel tax, Ryanair unveiled 3 new routes from Knock to Glasgow-Prestwick, Kaunas and Eindhoven.
• 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.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• In recent years Ryanair has grown operations and it is the largest airline to serve the airport with 14 scheduled routes.
• 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.
• By 1988, over 100,000 passengers had passed through.
• The airport is on the main N17 north – south road, halfway between Galway and Sligo, close to the junction with the N5 east – west Westport – Castlebar – Longford road.
• Ireland West Airport Knock handled 665,000 passengers last year.
• 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.