Nonstop flight route between Hillsboro / Portland, Oregon, United States and Monrovia, Liberia:
Departure Airport:

Arrival Airport:

Distance from HIO to MLW:
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- About this route
- HIO Airport Information
- MLW Airport Information
- Facts about HIO
- Facts about MLW
- 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 MLW
- List of Nearest Airports to MLW
- Map of Furthest Airports from MLW
- List of Furthest Airports from MLW
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Spriggs Payne Airport (MLW), Monrovia, Liberia would travel a Great Circle distance of 6,954 miles (or 11,191 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 Spriggs Payne 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 Spriggs Payne 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: | MLW / GLMR |
Airport Name: | Spriggs Payne Airport |
Location: | Monrovia, Liberia |
GPS Coordinates: | 6°17'21"N by 10°45'30"W |
Area Served: | Monrovia, Liberia |
Airport Type: | Public |
Elevation: | 25 feet (8 meters) |
# of Runways: | 1 |
View all routes: | Routes from MLW |
More Information: | MLW Maps & Info |
Facts about Portland-Hillsboro Airport (HIO):
- As of 2006, the Port of Portland planned to spend $134 million through 2025 to improve the Hillsboro facility.
- As of 2005 the airport handled 223,000 takeoffs and landings.
- Hillsboro airport goes back to as early as 1928.
- 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 closest airport to Portland-Hillsboro Airport (HIO) is Portland International Airport (PDX), which is located only 17 miles (28 kilometers) E of HIO.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- 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.
- 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.
Facts about Spriggs Payne Airport (MLW):
- The closest airport to Spriggs Payne Airport (MLW) is Roberts International Airport Roberts Field (ROB), which is located 27 miles (44 kilometers) E of MLW.
- In January 2011, newly-formed Fly 6ix, initially designated as the new national airline of Sierra Leone began operating from Freetown with a single Embraer ERJ-135 regional jet.
- The furthest airport from Spriggs Payne Airport (MLW) is Nauru International Airport (INU), which is nearly antipodal to Spriggs Payne Airport (meaning Spriggs Payne Airport is almost on the exact opposite side of the Earth from Nauru International Airport), and is located 12,009 miles (19,327 kilometers) away in Yaren, Nauru.
- Because of Spriggs Payne Airport's relatively low elevation of 25 feet, planes can take off or land at Spriggs Payne 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.
- Elysian ceased operating in mid-2010, and the airport was left for a period without any scheduled commercial service.
- Spriggs Payne Airport (MLW) currently has only 1 runway.