Nonstop flight route between Knock, Ireland and Rockford, Illinois, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 3,589 miles (or 5,776 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 Chicago Rockford International 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 Chicago Rockford International 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):

• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
• 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.
• 2007 was a notable year, with scheduled transatlantic services to New York and Boston commencing in May, operated by the now-defunct Flyglobespan.
• In 2005 the airport changed its name to Ireland West Airport Knock.
• Departing passengers aged 12 years and over pay a "Development Fee" of €10.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• 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.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• Since 2003, flag-carrier, low-cost and regional airlines including Aer Lingus, MyTravelLite, Bmibaby, Ryanair, Aer Arann, flybe, Lufthansa and EasyJet have added routes to the UK and mainland Europe.
• 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.

Facts about Chicago Rockford International Airport (RFD):

• The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
• The current terminal was built in 1987 in an effort to expand airline service in Rockford, but the common use of bus service to O'Hare International Airport kept most airlines away from Rockford.
• Several airlines have previously served the airport including United Express, Hooters Air, Frontier, Midwest Connect, Midway Connection, Trans Meridian, American Eagle, TWA, Ozark, McClain, Direct Air, Northwest Airlink, etc.
• Chicago Rockford International Airport, is a general aviation and commercial airport in Winnebago County, Illinois.
• Chicago Rockford International Airport (RFD) has 2 runways.
• RFD has two cargo aprons in use.
• Air shows have played an integral role in the history of the Rockford Airport.
• Following the war, the state of Illinois adopted the Airport Authority Act.
• The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford 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.