Nonstop flight route between Hillsboro / Portland, Oregon, United States and Knock, Ireland:
Departure Airport:

Arrival Airport:

Distance from HIO to NOC:
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- About this route
- HIO Airport Information
- NOC Airport Information
- Facts about HIO
- Facts about NOC
- Map of Nearest Airports to HIO
- List of Nearest Airports to HIO
- Map of Furthest Airports from HIO
- List of Furthest Airports from HIO
- Map of Nearest Airports to NOC
- List of Nearest Airports to NOC
- Map of Furthest Airports from NOC
- List of Furthest Airports from NOC
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 4,554 miles (or 7,329 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 Portland-Hillsboro 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 Portland-Hillsboro 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:
IATA / ICAO Codes: | HIO / KHIO |
Airport Name: | Portland-Hillsboro Airport |
Location: | Hillsboro / Portland, Oregon, United States |
GPS Coordinates: | 45°32'25"N by 122°56'59"W |
Operator/Owner: | Port of Portland |
Airport Type: | Public |
Elevation: | 204 feet (62 meters) |
# of Runways: | 2 |
View all routes: | Routes from HIO |
More Information: | HIO Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | NOC / EIKN |
Airport Names: |
|
Location: | Knock, Ireland |
GPS Coordinates: | 53°54'37"N by 8°49'6"W |
Area Served: | Connacht, Ireland |
Airport Type: | Public |
Elevation: | 665 feet (203 meters) |
# of Runways: | 1 |
View all routes: | Routes from NOC |
More Information: | NOC Maps & Info |
Facts about Portland-Hillsboro Airport (HIO):
- A Horizon Air plane was hijacked on May 2, 1986, en route from Eugene to Portland, with the pilot able to convince the hijacker to allow the plane to land at HIO where the hijacker was arrested.
- The closest airport to Portland-Hillsboro Airport (HIO) is Portland International Airport (PDX), which is located only 17 miles (28 kilometers) E of HIO.
- The furthest airport from Portland-Hillsboro Airport (HIO) is Tôlanaro Airport (FTU), which is located 10,913 miles (17,563 kilometers) away in Tôlanaro, Madagascar.
- The airport handled 259,263 flights in 2008, surpassing Portland International in this category.
- The airport was originally Hillsboro's municipal airport, which the Port of Portland bought in 1966.
- Because of Portland-Hillsboro Airport's relatively low elevation of 204 feet, planes can take off or land at Portland-Hillsboro 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.
- Hillsboro airport is often mentioned as a reliever airport for Portland International Airport.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- Located in Portland's western and Washington County suburbs, Hillsboro Airport is connected to the metropolitan area by TriMet buses and the MAX Blue Line's Fair Complex/Hillsboro Airport station.
- The field was also considered as a possible Naval air station in 1946 and again in 1955, but was eventually rejected by the Navy.
Facts about Ireland West Airport Knock (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.
- In recent years Ryanair has grown operations and it is the largest airline to serve the airport with 14 scheduled routes.
- The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.
- It was voted Ireland's best regional airport in 2006 and 2009 by the Chambers of Commerce of Ireland.
- In 2013, Ryanair launched a weekly summer route to Malaga on thursdays.
- In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
- 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.
- Ireland West Airport Knock (NOC) currently has only 1 runway.