Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Uganik Island, United States:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(57°43'49"N by 153°19'14"W)
Distance from CPS to UGI:
3,061.24 miles (4,926.58 km)
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Jump to:
- About this route
- CPS Airport Information
- UGI Airport Information
- Facts about CPS
- Facts about UGI
- 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 UGI
- List of Nearest Airports to UGI
- Map of Furthest Airports from UGI
- List of Furthest Airports from UGI
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and San Juan (Uganik) Seaplane Base (UGI), Uganik Island, United States would travel a Great Circle distance of 3,061 miles (or 4,927 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 San Juan (Uganik) Seaplane Base, 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 San Juan (Uganik) Seaplane Base. 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: | UGI / |
| Airport Names: |
|
| Location: | Uganik Island, United States |
| GPS Coordinates: | 57°43'49"N by 153°19'14"W |
| Area Served: | San Juan (Uganik), Alaska |
| Operator/Owner: | San Juan Fishing & Packing Co. |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UGI |
| More Information: | UGI Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
Facts about San Juan (Uganik) Seaplane Base (UGI):
- San Juan (Uganik) Seaplane Base (UGI) currently has only 1 runway.
- Because of San Juan (Uganik) Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at San Juan (Uganik) Seaplane Base 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 San Juan (Uganik) Seaplane Base (UGI) is West Point Village Seaplane Base (KWP), which is located only 9 miles (14 kilometers) WNW of UGI.
- This facility has one seaplane landing area designated N/S with a water surface measuring 10,000 by 2,000 feet.
- The furthest airport from San Juan (Uganik) Seaplane Base (UGI) is Port Elizabeth International Airport (PLZ), which is located 10,795 miles (17,373 kilometers) away in Port Elizabeth, South Africa.
- In addition to being known as "San Juan (Uganik) Seaplane Base", other names for UGI include "WSJ / UGI" and "WSJ".
| 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 | 8.85 miles (14.25 km) WNW | West Point Village Seaplane Base (KWP) | West Point, Kodiak Island Borough, Alaska, United States | |
| 2 | 17.22 miles (27.71 km) NE | Port Bailey Seaplane Base (KPY) | Port Bailey, Kodiak Island Borough, Alaska, United States | |
| 3 | 19.92 miles (32.06 km) SW | Zachar Bay Seaplane Base (KZB) | Zachar Bay, Alaska, United States | |
| 4 | 20.49 miles (32.97 km) ENE | Port Lions Airport (ORI) | Port Lions, Alaska, United States | |
| 5 | 25.60 miles (41.20 km) SW | Amook Bay Seaplane Base (AOS) | Amook Bay, Alaska, United States | |
| 6 | 27.77 miles (44.69 km) WSW | Larsen Bay Airport (KLN) | Larsen Bay, Alaska, United States | |
| 7 | 30.52 miles (49.11 km) E | Kodiak Benny Benson State Airport (ADQ) | Kodiak, Alaska, United States | |
| 8 | 34.71 miles (55.86 km) ENE | Ouzinkie Airport (KOZ) | Ouzinkie, Alaska, United States | |
| 9 | 35.27 miles (56.77 km) E | Kodiak Municipal Airport (KDK) | Kodiak, Alaska, United States | |
| 10 | 35.42 miles (57.01 km) S | Old Harbor Airport (OLH) | Old Harbor, Alaska, United States | |
| 11 | 43.41 miles (69.86 km) WSW | Karluk Airport (KYK) | Karluk, Alaska, United States | |
| 12 | 47.17 miles (75.91 km) NE | Kitoi Bay Seaplane Base (KKB) | Kitoi Bay, Alaska, United States | |
| 13 | 51.84 miles (83.43 km) SW | Olga Bay Seaplane Base (KOY) | Olga Bay, Kodiak Island Borough, Alaska, United States | |
| 14 | 57.58 miles (92.67 km) SSW | Moser Bay Seaplane Base (KMY) | Moser Bay, Kodiak Island Borough, Alaska, United States | |
| 15 | 59.00 miles (94.96 km) NNE | Port Williams Seaplane Base (KPR) | Port Williams, Kodiak Island Borough, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,795.38 miles (17,373.44 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,785.45 miles (17,357.45 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,766.36 miles (17,326.74 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,752.39 miles (17,304.26 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 5 | 10,729.68 miles (17,267.70 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,625.19 miles (17,099.55 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,572.02 miles (17,013.97 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,510.95 miles (16,915.69 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,508.51 miles (16,911.77 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,506.87 miles (16,909.13 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,502.26 miles (16,901.70 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,488.21 miles (16,879.09 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,483.21 miles (16,871.05 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 14 | 10,482.73 miles (16,870.27 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,467.82 miles (16,846.28 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |