Nonstop flight route between Hillsboro / Portland, Oregon, United States and Ratmalana, Sri Lanka:
Departure Airport:

Arrival Airport:

Distance from HIO to RML:
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- About this route
- HIO Airport Information
- RML Airport Information
- Facts about HIO
- Facts about RML
- 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 RML
- List of Nearest Airports to RML
- Map of Furthest Airports from RML
- List of Furthest Airports from RML
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Ratmalana Airport (RML), Ratmalana, Sri Lanka would travel a Great Circle distance of 8,553 miles (or 13,765 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 Ratmalana 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 Ratmalana 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: | RML / VCCC |
Airport Names: |
|
Location: | Ratmalana, Sri Lanka |
GPS Coordinates: | 6°49'19"N by 79°53'10"E |
Area Served: | Colombo |
Operator/Owner: | Sri Lankan Government |
Airport Type: | Public / Military |
Elevation: | 16 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from RML |
More Information: | RML Maps & Info |
Facts about Portland-Hillsboro Airport (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.
- Hillsboro airport goes back to as early as 1928.
- 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.
- Portland-Hillsboro Airport (HIO) has 2 runways.
- 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 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 Ratmalana Airport (RML):
- Ratmalana Airport (RML) currently has only 1 runway.
- In addition to being known as "Ratmalana Airport", another name for RML is "රත්මලාන ගුවන්තොටුපළஇரத்மலானை விமான நிலைய".
- Because of Ratmalana Airport's relatively low elevation of 16 feet, planes can take off or land at Ratmalana 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 Ratmalana Airport (RML) is Bandaranaike International Airport (CMB), which is located 25 miles (40 kilometers) N of RML.
- In 1934 the State Council of Ceylon made a decision to construct an aerodrome within reach of the capital city of Colombo and decided on Ratmalana as the best site.
- The furthest airport from Ratmalana Airport (RML) is Seymour Airport (GPS), which is located 11,628 miles (18,713 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
- In 2012, plans were drawn to relaunch Ratmalana as an international airport, to act as a secondary airport for the city.