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

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 3,554 miles (or 5,719 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 Chicago O'Hare 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 Chicago O'Hare 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 Chicago O'Hare International Airport (ORD):

• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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.
• United and American both established nationwide hubs at the airport in the 1980s, which continue to operate today.
• Following the closure of the O'Hare Air Reserve Station, the former USAF facilities were redeveloped for air cargo and general aviation.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• Due to the construction of Terminal 1 for United, international flights were relocated to a temporary Terminal 4 from 1984 until 1993.
• Growth was slow at first.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• The airport was constructed in 1942–43 as a manufacturing plant for Douglas C-54s during World War II.

Facts about Ireland West Airport Knock (NOC):

• 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.
• 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.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• 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 handled 665,000 passengers last year.
• In 2011, the month of August was the busiest in the airport's history with 84,052 passengers.
• On 21 February 2007, the Government of Ireland announced that it was making a €27 million capital grant.
• 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.
• 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.
• 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 2013, Ryanair launched a weekly summer route to Malaga on thursdays.
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.