Nonstop flight route between Arlington County, Virginia (near Washington, D.C.), United States and Knock, Ireland:

About this route:

A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 3,274 miles (or 5,268 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 Ronald Reagan Washington National 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 Ronald Reagan Washington National 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 Ronald Reagan Washington National Airport (DCA):

• The closest airport to Ronald Reagan Washington National Airport (DCA) is Bolling Air Force Base (BOF), which is located only 1 miles (2 kilometers) ESE of DCA.
• The airport opened June 16, 1941.
• Although the need for a better airport was acknowledged in 37 studies conducted between 1926 and 1938, there was a statutory prohibition against federal development of airports.
• In 1999, Senator John McCain of Arizona introduced legislation to remove the 1,250-statute-mile restriction, infuriating some local residents concerned about noise and traffic from increased service by larger, long-haul aircraft.
• The runway layout has changed little, except for the 1956 closure of a fourth, east–west runway now used for taxiing and aircraft parking.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• Because of Ronald Reagan Washington National Airport's relatively low elevation of 15 feet, planes can take off or land at Ronald Reagan Washington National 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.
• After the attacks, the airport was closed for several weeks, and security was tightened when it reopened.
• On February 6, 1998 President Bill Clinton signed legislation changing the airport's name from Washington National Airport to Ronald Reagan Washington National Airport, to honor the former president on his 87th birthday.
• The furthest airport from Ronald Reagan Washington National Airport (DCA) is Margaret River Airport (MGV), which is located 11,682 miles (18,800 kilometers) away in Margaret River, Western Australia, Australia.

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".
• 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 2011, the month of August was the busiest in the airport's history with 84,052 passengers.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• The nearest railway stations are Ballyhaunis, Foxford and Claremorris, accessible by taxi and bus.
• 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.
• During September 2011 Ryanair celebrated its 4 millionth passenger through the airport, while Lufthansa announced it would be commencing weekly flights to Düsseldorf in May 2012.
• 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 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.