Nonstop flight route between Knock, Ireland and Alpena, Michigan, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Alpena County Regional Airport (APN), Alpena, Michigan, United States would travel a Great Circle distance of 3,249 miles (or 5,229 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 Alpena County Regional 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 Alpena County Regional 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):

• 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.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• Ireland West Airport Knock handled 665,000 passengers last year.
• The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of 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.
• 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.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".

Facts about Alpena County Regional Airport (APN):

• Alpena County Regional Airport is a county-owned, public-use, joint civil-military airport in Alpena County, Michigan, United States.
• Alpena County Regional Airport (APN) has 2 runways.
• The closest airport to Alpena County Regional Airport (APN) is Oscoda-Wurtsmith Airport (OSC), which is located 44 miles (71 kilometers) S of APN.
• The furthest airport from Alpena County Regional Airport (APN) is Margaret River Airport (MGV), which is located 11,184 miles (17,999 kilometers) away in Margaret River, Western Australia, Australia.
• Alpena County Regional Airport covers an area of 3,084 acres at an elevation of 690 feet above mean sea level.
• Because of Alpena County Regional Airport's relatively low elevation of 690 feet, planes can take off or land at Alpena County Regional 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.
• As per Federal Aviation Administration records, the airport had 7,519 passenger boardings in calendar year 2008, 7,638 enplanements in 2009, and 8,737 in 2010.