Nonstop flight route between Hillsboro / Portland, Oregon, United States and Koror, Palau:
Departure Airport:
(45°32'25"N by 122°56'59"W)
Arrival Airport:
(7°22'1"N by 134°32'39"E)
Distance from HIO to ROR:
6,451.68 miles (10,382.94 km)
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Jump to:
- About this route
- HIO Airport Information
- ROR Airport Information
- Facts about HIO
- Facts about ROR
- 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 ROR
- List of Nearest Airports to ROR
- Map of Furthest Airports from ROR
- List of Furthest Airports from ROR
About this route:
A direct, nonstop flight between Portland-Hillsboro Airport (HIO), Hillsboro / Portland, Oregon, United States and Roman Tmetuchl International Airport (ROR), Koror, Palau would travel a Great Circle distance of 6,452 miles (or 10,383 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 Roman Tmetuchl 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 Roman Tmetuchl 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: | ROR / PTRO |
| Airport Name: | Roman Tmetuchl International Airport |
| Location: | Koror, Palau |
| GPS Coordinates: | 7°22'1"N by 134°32'39"E |
| Operator/Owner: | Republic of Palau |
| Airport Type: | Public |
| Elevation: | 176 feet (54 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ROR |
| More Information: | ROR Maps & Info |
Facts about Portland-Hillsboro Airport (HIO):
- Portland-Hillsboro Airport (HIO) has 2 runways.
- Hillsboro airport goes back to as early as 1928.
- 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 was originally Hillsboro's municipal airport, which the Port of Portland bought in 1966.
- 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.
- As of 2006, the Port of Portland planned to spend $134 million through 2025 to improve the Hillsboro facility.
Facts about Roman Tmetuchl International Airport (ROR):
- Roman Tmetuchl International Airport (ROR) currently has only 1 runway.
- The closest airport to Roman Tmetuchl International Airport (ROR) is Yap International Airport (YAP), which is located 283 miles (456 kilometers) ENE of ROR.
- The furthest airport from Roman Tmetuchl International Airport (ROR) is Imperatriz-Prefeito Renato Moreira Airport (IMP), which is nearly antipodal to Roman Tmetuchl International Airport (meaning Roman Tmetuchl International Airport is almost on the exact opposite side of the Earth from Imperatriz-Prefeito Renato Moreira Airport), and is located 12,250 miles (19,714 kilometers) away in Imperatriz, Maranhão, Brazil.
- The airport covers an area of 480 acres at an elevation of 176 feet above mean sea level.
- Because of Roman Tmetuchl International Airport's relatively low elevation of 176 feet, planes can take off or land at Roman Tmetuchl 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 17.37 miles (27.95 km) E | Portland International Airport (PDX) | Portland, Oregon, United States |     |
| 2 | 26.56 miles (42.74 km) E | Portland-Troutdale Airport (TTD) | Portland, Oregon, United States | |
| 3 | 39.99 miles (64.36 km) N | Southwest Washington Regional Airport (KLS) | Kelso, Washington, United States | |
| 4 | 43.67 miles (70.28 km) S | McNary Field (SLE) | Salem, Oregon, United States | |
| 5 | 52.62 miles (84.68 km) E | Cascade Locks State Airport (CZK) | Cascade Locks, Oregon, United States | |
| 6 | 54.49 miles (87.69 km) WSW | Pacific City State Airport (PFC) | Pacific City, Oregon, United States | |
| 7 | 61.80 miles (99.46 km) NW | Astoria Regional Airport (AST) | Astoria, Oregon, United States | |
| 8 | 65.09 miles (104.76 km) N | South Lewis County Airport (TDO) | Toledo, Washington, United States | |
| 9 | 73.96 miles (119.03 km) SSW | Corvallis Municipal Airport (CVO) | Corvallis, Oregon, United States | |
| 10 | 85.58 miles (137.73 km) SW | Newport Municipal Airport (ONP) | Newport, Oregon, United States | |
| 11 | 86.37 miles (139.00 km) E | Columbia Gorge Regional Airport (DLS) | The Dalles, Oregon, United States | |
| 12 | 98.76 miles (158.94 km) N | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 13 | 98.81 miles (159.02 km) S | Eugene Airport (EUG) | Eugene, Oregon, United States | |
| 14 | 106.18 miles (170.88 km) SE | Madras Municipal AirportMadras Army Airfield (MDJ) | Madras, Oregon, United States | |
| 15 | 107.77 miles (173.43 km) N | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,913.06 miles (17,562.83 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,841.79 miles (17,448.13 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,760.92 miles (17,317.97 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,731.40 miles (17,270.47 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,701.47 miles (17,222.30 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,684.52 miles (17,195.02 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,680.66 miles (17,188.81 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,679.29 miles (17,186.61 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,665.10 miles (17,163.77 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 10 | 10,653.79 miles (17,145.56 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 11 | 10,651.04 miles (17,141.15 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,643.38 miles (17,128.82 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 13 | 10,641.11 miles (17,125.16 km) SSE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,638.69 miles (17,121.27 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 15 | 10,625.08 miles (17,099.37 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 283.14 miles (455.67 km) ENE | Yap International Airport (YAP) | Yap, Federated States of Micronesia | |
| 2 | 402.42 miles (647.62 km) ENE | Falalop Airfield (ULI) | Falalop Island, Yap, Federated States of Micronesia | |
| 3 | 565.60 miles (910.25 km) W | Bislig Airport (BPH) | Bislig City, Surigao del Sur, Philippines | |
| 4 | 567.78 miles (913.76 km) W | Mati Airport (MXI) | Mati, Davao Oriental, Philippines | |
| 5 | 571.65 miles (919.98 km) S | Rendani Airport (MKW) | Manokwari, Irian Jaya, Indonesia | |
| 6 | 574.17 miles (924.03 km) S | Kornasoren Airport (FOO) | Noemfoor, Schouten Islands, Indonesia | |
| 7 | 584.52 miles (940.69 km) WNW | Tandag Airport (TDG) | Tandag, Surigao del Sur, Philippines | |
| 8 | 588.81 miles (947.59 km) WSW | Melangguane Airport (MNA) | Melangguane, North Sulawesi, Indonesia | |
| 9 | 600.99 miles (967.19 km) S | Frans Kaisiepo Airport (BIK) | Biak, Indonesia | |
| 10 | 606.38 miles (975.87 km) S | Anggi Airport (AGD) | Anggi, Indonesia | |
| 11 | 607.58 miles (977.80 km) WNW | Sayak Airport (SOS) | Del Carmen, Surigao del Norte, Philippines | |
| 12 | 608.48 miles (979.25 km) SSW | Ayawasi Airport (AYW) | Ayawasi, Indonesia | |
| 13 | 610.12 miles (981.90 km) W | Francisco Bangoy International Airport (DVO) | Davao City, Philippines | |
| 14 | 629.62 miles (1,013.27 km) W | Butuan-Bancasi Airport (BXU) | Butuan City, Philippines | |
| 15 | 640.91 miles (1,031.45 km) WNW | Surigao Airport (SUG) | Surigao City, Surigao del Norte, Philippines | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,249.70 miles (19,713.94 km) SE | Imperatriz-Prefeito Renato Moreira Airport (IMP) | Imperatriz, Maranhão, Brazil | |
| 2 | 12,245.69 miles (19,707.48 km) E | Araguaína Airport (AUX) | Araguaína, Tocantins, Brazil | |
| 3 | 12,195.83 miles (19,627.24 km) SW | Teresina–Senador Petrônio Portella Airport (THE) | Teresina, Piauí, Brazil | |
| 4 | 12,164.89 miles (19,577.44 km) ESE | Conceição do Araguaia Airport (CDJ) | Conceição do Araguaia, Pará, Brazil | |
| 5 | 12,153.91 miles (19,559.77 km) SE | Palmas–Brigadeiro Lysias Rodrigues Airport (PMW) | Palmas, Tocantins, Brazil | |
| 6 | 12,148.67 miles (19,551.34 km) ESE | João Correa da Rocha Airport (MAB) | Marabá, Pará, Brazil | |
| 7 | 12,135.12 miles (19,529.53 km) SSW | Barra Airport (BQQ) | Barra, Bahia, Brazil | |
| 8 | 12,126.45 miles (19,515.59 km) E | Xinguara Airport (XIG) | Xinguara, Pará, Brazil | |
| 9 | 12,113.14 miles (19,494.15 km) ESE | Carajás Airport (CKS) | Carajás, Pará, Brazil | |
| 10 | 12,109.82 miles (19,488.82 km) S | Barreiras Airport (BRA) | Barreiras, Bahia, Brazil | |
| 11 | 12,096.02 miles (19,466.60 km) SSW | Marechal Cunha Machado International Airport (Tirirical) (SLZ) | São Luís, Brazil | |
| 12 | 12,077.07 miles (19,436.11 km) WSW | Petrolina–Senador Nilo Coelho Airport (PNZ) | Petrolina, Pernambuco, Brazil | |
| 13 | 12,069.73 miles (19,424.30 km) SSW | Barreirinhas Airport (BRB) | Barreirinhas, Maranhão, Brazil | |
| 14 | 12,044.38 miles (19,383.50 km) SE | Gurupi Airport (GRP) | Gurupi, Goiás, Brazil | |
| 15 | 12,035.20 miles (19,368.73 km) SW | Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) | Parnaiba, Piaui, Brazil | |