Nonstop flight route between Hillsboro / Portland, Oregon, United States and Assab, Eritrea:
Departure Airport:

Arrival Airport:

Distance from HIO to ASA:
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- About this route
- HIO Airport Information
- ASA Airport Information
- Facts about HIO
- Facts about ASA
- 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 ASA
- List of Nearest Airports to ASA
- Map of Furthest Airports from ASA
- List of Furthest Airports from ASA
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Assab International Airport (ASA), Assab, Eritrea would travel a Great Circle distance of 8,288 miles (or 13,339 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 Assab International 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 Assab International 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: | ASA / HHSB |
Airport Name: | Assab International Airport |
Location: | Assab, Eritrea |
GPS Coordinates: | 13°4'18"N by 42°38'42"E |
Area Served: | Assab |
Airport Type: | Public/Military |
Elevation: | 46 feet (14 meters) |
# of Runways: | 1 |
View all routes: | Routes from ASA |
More Information: | ASA Maps & Info |
Facts about Portland-Hillsboro Airport (HIO):
- With the outbreak of World War II in 1941, the city received federal money again, plus the city approved local financing to improve the airport again, with the costs of the improvements totaling around $600,000.
- 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 furthest airport from Portland-Hillsboro Airport (HIO) is Tôlanaro Airport (FTU), which is located 10,913 miles (17,563 kilometers) away in Tôlanaro, Madagascar.
- 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.
- As of 2006, the Port of Portland planned to spend $134 million through 2025 to improve the Hillsboro facility.
- The closest airport to Portland-Hillsboro Airport (HIO) is Portland International Airport (PDX), which is located only 17 miles (28 kilometers) E of HIO.
Facts about Assab International Airport (ASA):
- Assab International Airport (ASA) currently has only 1 runway.
- The closest airport to Assab International Airport (ASA) is Obock Airport (OBC), which is located 87 miles (141 kilometers) SSE of ASA.
- Because of Assab International Airport's relatively low elevation of 46 feet, planes can take off or land at Assab 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.
- The furthest airport from Assab International Airport (ASA) is Atuona Airport (AUQ), which is nearly antipodal to Assab International Airport (meaning Assab International Airport is almost on the exact opposite side of the Earth from Atuona Airport), and is located 12,182 miles (19,606 kilometers) away in Atuona, Marquesas Islands, French Polynesia.