Nonstop flight route between Hillsboro / Portland, Oregon, United States and Dillingham, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from HIO to DLG:
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- About this route
- HIO Airport Information
- DLG Airport Information
- Facts about HIO
- Facts about DLG
- 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 DLG
- List of Nearest Airports to DLG
- Map of Furthest Airports from DLG
- List of Furthest Airports from DLG
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Dillingham Airport (DLG), Dillingham, Alaska, United States would travel a Great Circle distance of 1,738 miles (or 2,797 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 relatively short distance between Portland-Hillsboro Airport and Dillingham Airport, the route shown on this map most likely still appears to be a straight line.
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: | DLG / PADL |
Airport Name: | Dillingham Airport |
Location: | Dillingham, Alaska, United States |
GPS Coordinates: | 59°2'40"N by 158°30'20"W |
Area Served: | Dillingham, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 81 feet (25 meters) |
# of Runways: | 1 |
View all routes: | Routes from DLG |
More Information: | DLG Maps & Info |
Facts about Portland-Hillsboro Airport (HIO):
- Located in the north-central area of Hillsboro, and west of Portland, it hosts the annual Oregon International Air Show.
- The closest airport to Portland-Hillsboro Airport (HIO) is Portland International Airport (PDX), which is located only 17 miles (28 kilometers) E of HIO.
- Hillsboro airport goes back to as early as 1928.
- Hillsboro airport is often mentioned as a reliever airport for Portland International Airport.
- The airport was originally Hillsboro's municipal airport, which the Port of Portland bought in 1966.
- 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.
- 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.
- The field was also considered as a possible Naval air station in 1946 and again in 1955, but was eventually rejected by the Navy.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- 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.
- 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.
Facts about Dillingham Airport (DLG):
- Because of Dillingham Airport's relatively low elevation of 81 feet, planes can take off or land at Dillingham 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.
- Dillingham Airport is a state owned, public use airport located two nautical miles west of the central business district of Dillingham, a city in the Dillingham Census Area of the U.S.
- Dillingham Airport (DLG) currently has only 1 runway.
- The closest airport to Dillingham Airport (DLG) is Clarks Point Airport (CLP), which is located only 15 miles (24 kilometers) S of DLG.
- The furthest airport from Dillingham Airport (DLG) is George Airport (GRJ), which is located 10,706 miles (17,230 kilometers) away in George, South Africa.