Nonstop flight route between Knock, Ireland and Helena / West Helena, Arkansas, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Thompson-Robbins AirportThompson-Robbins Army Airfield (HEE), Helena / West Helena, Arkansas, United States would travel a Great Circle distance of 4,020 miles (or 6,469 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 Thompson-Robbins AirportThompson-Robbins Army Airfield, 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 Thompson-Robbins AirportThompson-Robbins Army Airfield. 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.
• It was voted Ireland's best regional airport in 2006 and 2009 by the Chambers of Commerce of Ireland.
• 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.
• 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 2005 the airport changed its name to Ireland West Airport Knock.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• In 2008 a record 629,000 passengers used the airport, a 13% rise compared to the previous year.
• 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 addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".

Facts about Thompson-Robbins AirportThompson-Robbins Army Airfield (HEE):

• The airfield was operated under contract to USAAF by Aero-Tech providing basic flight instruction to aviation cadets.
• The furthest airport from Thompson-Robbins AirportThompson-Robbins Army Airfield (HEE) is Margaret River Airport (MGV), which is located 10,968 miles (17,651 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Thompson-Robbins AirportThompson-Robbins Army Airfield (HEE) is Tunica Municipal Airport (UTM), which is located 20 miles (32 kilometers) ENE of HEE.
• Because of Thompson-Robbins AirportThompson-Robbins Army Airfield's relatively low elevation of 242 feet, planes can take off or land at Thompson-Robbins AirportThompson-Robbins Army Airfield 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.
• Thompson-Robbins AirportThompson-Robbins Army Airfield (HEE) has 2 runways.