Nonstop flight route between Hillsboro / Portland, Oregon, United States and Kärdla, Hiiumaa, Estonia:
Departure Airport:
 
    Arrival Airport:
 
    Distance from HIO to KDL:
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- About this route
- HIO Airport Information
- KDL Airport Information
- Facts about HIO
- Facts about KDL
- 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 KDL
- List of Nearest Airports to KDL
- Map of Furthest Airports from KDL
- List of Furthest Airports from KDL
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Kärdla Airport (KDL), Kärdla, Hiiumaa, Estonia would travel a Great Circle distance of 4,957 miles (or 7,977 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 Kärdla 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 Portland-Hillsboro Airport and Kärdla Airport. 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: | KDL / EEKA | 
| Airport Names: | 
 | 
| Location: | Kärdla, Hiiumaa, Estonia | 
| GPS Coordinates: | 58°59'26"N by 22°49'50"E | 
| Operator/Owner: | SC Kärdla Airport | 
| Airport Type: | Public | 
| Elevation: | 18 feet (5 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from KDL | 
| More Information: | KDL Maps & Info | 
Facts about Portland-Hillsboro Airport (HIO):
- Hillsboro Airport, also known as Portland-Hillsboro Airport, is the name of a corporate, general aviation and flight-training airport serving the city of Hillsboro, in Washington County, Oregon, USA.
- 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 was originally Hillsboro's municipal airport, which the Port of Portland bought in 1966.
- The closest airport to Portland-Hillsboro Airport (HIO) is Portland International Airport (PDX), which is located only 17 miles (28 kilometers) E of HIO.
- 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.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- Hillsboro airport is often mentioned as a reliever airport for Portland International Airport.
Facts about Kärdla Airport (KDL):
- Because of Kärdla Airport's relatively low elevation of 18 feet, planes can take off or land at Kärdla 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.
- In addition to being known as "Kärdla Airport", another name for KDL is "Kärdla lennujaam".
- The closest airport to Kärdla Airport (KDL) is Kuressaare Airport (URE), which is located 54 miles (87 kilometers) SSW of KDL.
- Kärdla Airport (KDL) currently has only 1 runway.
- Kärdla Airport opened in 1963.
- The furthest airport from Kärdla Airport (KDL) is Chatham Islands (CHT), which is located 11,109 miles (17,877 kilometers) away in Waitangi, Chatham Islands, New Zealand.




