Nonstop flight route between Greensboro, North Carolina, United States and Knock, Ireland:

About this route:

A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 3,520 miles (or 5,664 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 Piedmont Triad International 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 Piedmont Triad International 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 Piedmont Triad International Airport (GSO):

• Pitcairn Aviation, Incorporated was given the contract to fly the airmail route, the second official airmail route in the United States, and Pitcairn Aviation made the first delivery of airmail in North Carolina on May 1, 1928.
• The closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.
• By 1975 airport officials began to plan for a new terminal.
• Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad International 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.
• The furthest airport from Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
• A third runway was built to accommodate the hub operation, parallel to one of the existing ones.
• The Cargo Terminals have expanded in the last 13 years.
• Piedmont Triad International Airport (GSO) has 3 runways.
• Also in the mid-1990s, start-up carrier Eastwind Airlines began serving PTI.

Facts about Ireland West Airport Knock (NOC):

• In November 2011 Ryanair announced flights to Beauvais-Tillé, Frankfurt Hahn, Bergamo-Orio al Serio and Girona-Costa Brava from March 2012.
• 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 (NOC) currently has only 1 runway.
• On 1 June 2003, hundreds of people gathered to view a Boeing 747 land with 500 returning pilgrims from Lourdes.
• Ireland West Airport Knock handled 665,000 passengers last year.
• In 2011, the month of August was the busiest in the airport's history with 84,052 passengers.
• 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.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• 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.
• Ireland West Airport Knock is 5.6km south-west of Charlestown, County Mayo, Ireland.
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
• In recent years Ryanair has grown operations and it is the largest airline to serve the airport with 14 scheduled routes.