Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ihu, Papua New Guinea:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(7°54'0"S by 145°24'0"E)
Distance from CPS to IHU:
8,400.44 miles (13,519.16 km)
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Jump to:
- About this route
- CPS Airport Information
- IHU Airport Information
- Facts about CPS
- Facts about IHU
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to IHU
- List of Nearest Airports to IHU
- Map of Furthest Airports from IHU
- List of Furthest Airports from IHU
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ihu Airport (IHU), Ihu, Papua New Guinea would travel a Great Circle distance of 8,400 miles (or 13,519 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 St. Louis Downtown Airport and Ihu 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 St. Louis Downtown Airport and Ihu Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | IHU / |
| Airport Names: |
|
| Location: | Ihu, Papua New Guinea |
| GPS Coordinates: | 7°54'0"S by 145°24'0"E |
| Elevation: | 40 feet (12 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IHU |
| More Information: | IHU Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Ihu Airport (IHU):
- The closest airport to Ihu Airport (IHU) is Kerema Airport (KMA), which is located 26 miles (41 kilometers) E of IHU.
- The furthest airport from Ihu Airport (IHU) is Governador Carlos Wilson Airport (FEN), which is located 11,611 miles (18,686 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.
- In addition to being known as "Ihu Airport", another name for IHU is "AYIH".
- Because of Ihu Airport's relatively low elevation of 40 feet, planes can take off or land at Ihu 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.
- Ihu Airport (IHU) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 25.78 miles (41.49 km) E | Kerema Airport (KMA) | Kerema, Papua New Guinea | |
| 2 | 48.46 miles (77.98 km) NW | Baimuru Airport (VMU) | Baimuru, Papua New Guinea | |
| 3 | 57.70 miles (92.86 km) NNE | Andakombe Airport (ADC) | Andakombe, Papua New Guinea | |
| 4 | 85.35 miles (137.36 km) WNW | Kikori Airport (KRI) | Kikori, Papua New Guinea | |
| 5 | 97.75 miles (157.32 km) ENE | Bulolo Airport (BUL) | Bulolo, Papua New Guinea | |
| 6 | 113.34 miles (182.40 km) NNE | Aiyura Airport (AYU) | Aiyura, Papua New Guinea | |
| 7 | 123.69 miles (199.06 km) ESE | Fane Airport (FNE) | Fane, Papua New Guinea | |
| 8 | 125.65 miles (202.21 km) N | Goroka Airport (GKA) | Goroka, Papua New Guinea | |
| 9 | 129.27 miles (208.03 km) NE | Lae Nadzab Airport (LAE) | Lae, Papua New Guinea, Papua New Guinea | |
| 10 | 132.93 miles (213.93 km) NNW | Chimbu Airport (CMU) | Kundiawa, Papua New Guinea | |
| 11 | 133.24 miles (214.44 km) NNE | Gusap Airport (GAP) | Gusap, Papua New Guinea | |
| 12 | 162.05 miles (260.79 km) NNW | Mount Hagen Airport (HGU) | Mount Hagen, Papua New Guinea | |
| 13 | 163.76 miles (263.55 km) SE | Jacksons International Airport (POM) | Port Moresby, Papua New Guinea | |
| 14 | 166.78 miles (268.40 km) SSW | Murray Island Airport (MYI) | Murray Island, Torres Strait Islands, Queensland, Australia | |
| 15 | 170.14 miles (273.81 km) NW | Mendi Airport (MDU) | Mendi, Papua New Guinea | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,610.94 miles (18,685.95 km) N | Governador Carlos Wilson Airport (FEN) | Fernando de Noronha, Pernambuco, Brazil | |
| 2 | 11,599.00 miles (18,666.74 km) NW | São Filipe Airport (SFL) | Fogo, Cape Verde | |
| 3 | 11,585.75 miles (18,645.41 km) NNE | Pinto Martins – Fortaleza International Airport (FOR) | Fortaleza, Ceará, Brazil | |
| 4 | 11,584.98 miles (18,644.17 km) NW | Mosteiros Airport (MTI) | Mosteiros, Cape Verde | |
| 5 | 11,545.32 miles (18,580.34 km) NW | Cesária Évora International Airport (VXE) | São Vicente, Cape Verde | |
| 6 | 11,543.70 miles (18,577.74 km) NNE | Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) | Parnaiba, Piaui, Brazil | |
| 7 | 11,542.13 miles (18,575.21 km) NW | Praia International Airport (RAI) | Praia, Cape Verde | |
| 8 | 11,529.42 miles (18,554.76 km) NW | Agostinho Neto Airport (NTO) | Ponta do Sol, Santo Antão, Cape Verde | |
| 9 | 11,517.90 miles (18,536.22 km) NW | Preguiça Airport (SNE) | São Nicolau, Cape Verde | |
| 10 | 11,517.83 miles (18,536.11 km) NW | Maio Airport (MMO) | Maio, Cape Verde | |
| 11 | 11,512.15 miles (18,526.96 km) NNE | Gov. Dix-Sept Rosado Airport (MVF) | Mossoro, Rio Grande do Norte, Brazil | |
| 12 | 11,508.35 miles (18,520.84 km) NE | Barreirinhas Airport (BRB) | Barreirinhas, Maranhão, Brazil | |
| 13 | 11,481.67 miles (18,477.92 km) N | Augusto Severo International Airport (NAT) | Natal, Brazil | |
| 14 | 11,462.69 miles (18,447.37 km) NW | Aristides Pereira International Airport (BVC) | Boa Vista, Cape Verde | |
| 15 | 11,453.88 miles (18,433.19 km) NE | Marechal Cunha Machado International Airport (Tirirical) (SLZ) | São Luís, Brazil | |