Nonstop flight route between Hillsboro / Portland, Oregon, United States and Marshall, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from HIO to ASL:
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- About this route
- HIO Airport Information
- ASL Airport Information
- Facts about HIO
- Facts about ASL
- 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 ASL
- List of Nearest Airports to ASL
- Map of Furthest Airports from ASL
- List of Furthest Airports from ASL
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Harrison County Airport (ASL), Marshall, Texas, United States would travel a Great Circle distance of 1,767 miles (or 2,844 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 Harrison County 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: | ASL / KASL |
Airport Name: | Harrison County Airport |
Location: | Marshall, Texas, United States |
GPS Coordinates: | 32°31'14"N by 94°18'28"W |
Area Served: | Marshall, Texas |
Operator/Owner: | Harrison County |
Airport Type: | Public |
Elevation: | 357 feet (109 meters) |
# of Runways: | 2 |
View all routes: | Routes from ASL |
More Information: | ASL 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.
- 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.
- The field was also considered as a possible Naval air station in 1946 and again in 1955, but was eventually rejected by the Navy.
- 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 airport handled 259,263 flights in 2008, surpassing Portland International in this category.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- The airport was originally Hillsboro's municipal airport, which the Port of Portland bought in 1966.
Facts about Harrison County Airport (ASL):
- The furthest airport from Harrison County Airport (ASL) is Cocos (Keeling) Island Airport (CCK), which is located 10,865 miles (17,485 kilometers) away in Cocos Islands, Australia.
- Harrison County Airport covers 480 acres at an elevation of 357 feet.
- Because of Harrison County Airport's relatively low elevation of 357 feet, planes can take off or land at Harrison County 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 closest airport to Harrison County Airport (ASL) is East Texas Regional Airport (GGG), which is located 25 miles (41 kilometers) WSW of ASL.
- Harrison County Airport (ASL) has 2 runways.