Nonstop flight route between Knock, Ireland and Portland, Oregon, United States:

About this route:

A direct, nonstop flight between Ireland West Airport Knock (NOC), Knock, Ireland and Portland-Troutdale Airport (TTD), Portland, Oregon, United States would travel a Great Circle distance of 4,538 miles (or 7,303 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 Portland-Troutdale 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 Portland-Troutdale 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 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.
• Ireland West Airport Knock (NOC) currently has only 1 runway.
• 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 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.
• 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 handled 665,000 passengers last year.
• Departing passengers aged 12 years and over pay a "Development Fee" of €10.
• 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.
• It was voted Ireland's best regional airport in 2006 and 2009 by the Chambers of Commerce of Ireland.
• In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
• On 21 February 2007, the Government of Ireland announced that it was making a €27 million capital grant.

Facts about Portland-Troutdale Airport (TTD):

• The furthest airport from Portland-Troutdale Airport (TTD) is Tôlanaro Airport (FTU), which is located 10,901 miles (17,543 kilometers) away in Tôlanaro, Madagascar.
• The airport was purchased by the Port of Portland in 1942, serving as a reliever airport for nearby Portland International Airport until the 1950s.
• Portland-Troutdale Airport covers an area of 284 acres at an elevation of 39 feet above mean sea level.
• Portland-Troutdale Airport (TTD) currently has only 1 runway.
• The closest airport to Portland-Troutdale Airport (TTD) is Portland International Airport (PDX), which is located only 10 miles (16 kilometers) WNW of TTD.
• Because of Portland-Troutdale Airport's relatively low elevation of 39 feet, planes can take off or land at Portland-Troutdale 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.