Nonstop flight route between Columbus, Ohio, United States and Knock, Ireland:

About this route:

A direct, nonstop flight between Port Columbus International Airport (CMH), Columbus, Ohio, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 3,452 miles (or 5,556 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 Port Columbus 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 Port Columbus 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 Port Columbus International Airport (CMH):

• Port Columbus International Airport was formerly a hub of America West Airlines in the 1990s, but the company closed the hub in 2003.
• The closest airport to Port Columbus International Airport (CMH) is Ohio State University Airport (OSU), which is located only 11 miles (18 kilometers) WNW of CMH.
• The diagram on the February 1951 Coast & Geodetic Survey instrument-approach chart shows runways 006/186 3550 ft long, 052/232 4400 ft, 096/276 4500 ft, and 127/307 5030 ft.
• Because of Port Columbus International Airport's relatively low elevation of 815 feet, planes can take off or land at Port Columbus 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.
• On April 25, 2004, a new 195-foot control tower directed its first aircraft, ushering in the beginning of several major facility enhancements to be constructed through 2025.
• Port Columbus International Airport (CMH) has 2 runways.
• Today Port Columbus has service to almost all major airline hubs across the United States, exceptions being Seattle, San Francisco, and Salt Lake City.
• The furthest airport from Port Columbus International Airport (CMH) is Margaret River Airport (MGV), which is located 11,361 miles (18,284 kilometers) away in Margaret River, Western Australia, Australia.
• On October 21, 2010, a new arrivals/departures board was installed in the place of the old one in the main entrance area
• Port Columbus International Airport, commonly shortened to Port Columbus, is a Class C international airport located 6 miles east of downtown Columbus, Ohio, USA.

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.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• 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.
• Ireland West Airport Knock is 5.6km south-west of Charlestown, County Mayo, Ireland.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
• The nearest railway stations are Ballyhaunis, Foxford and Claremorris, accessible by taxi and bus.
• Ireland West Airport Knock handled 665,000 passengers last year.
• In 2005 the airport changed its name to Ireland West Airport Knock.
• 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.