Nonstop flight route between Ketchikan, Alaska, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(55°21'15"N by 131°42'39"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from KTN to CPS:
2,229.67 miles (3,588.30 km)
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Jump to:
- About this route
- KTN Airport Information
- CPS Airport Information
- Facts about KTN
- Facts about CPS
- Map of Nearest Airports to KTN
- List of Nearest Airports to KTN
- Map of Furthest Airports from KTN
- List of Furthest Airports from KTN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Ketchikan International Airport (KTN), Ketchikan, Alaska, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 2,230 miles (or 3,588 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 relatively short distance between Ketchikan International Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KTN / PAKT |
| Airport Name: | Ketchikan International Airport |
| Location: | Ketchikan, Alaska, United States |
| GPS Coordinates: | 55°21'15"N by 131°42'39"W |
| Area Served: | Ketchikan, Alaska |
| Operator/Owner: | State of Alaska DOT&PF – Southeastern Region |
| Airport Type: | Public |
| Elevation: | 89 feet (27 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KTN |
| More Information: | KTN Maps & Info |
Arrival 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 |
Facts about Ketchikan International Airport (KTN):
- The closest airport to Ketchikan International Airport (KTN) is Ketchikan Harbor Seaplane Base (WFB), which is located only 2 miles (3 kilometers) ESE of KTN.
- Ketchikan International Airport covers an area of 2,600 acres at an elevation of 89 feet above mean sea level.
- Ketchikan International Airport (KTN) has 2 runways.
- Because of Ketchikan International Airport's relatively low elevation of 89 feet, planes can take off or land at Ketchikan 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.
- The furthest airport from Ketchikan International Airport (KTN) is Port Alfred Airport (AFD), which is located 10,613 miles (17,081 kilometers) away in Port Alfred, South Africa.
Facts about St. Louis Downtown Airport (CPS):
- 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 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.
- 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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 1.99 miles (3.21 km) ESE | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States |     |
| 2 | 16.28 miles (26.20 km) SSE | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 3 | 22.22 miles (35.76 km) SSE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 4 | 37.00 miles (59.55 km) WNW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 39.68 miles (63.87 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 6 | 45.14 miles (72.64 km) WSW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 7 | 55.68 miles (89.60 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 8 | 57.00 miles (91.73 km) W | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 9 | 60.36 miles (97.14 km) W | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 63.21 miles (101.73 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 11 | 68.39 miles (110.06 km) WNW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 12 | 74.77 miles (120.33 km) WNW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 13 | 76.05 miles (122.39 km) NW | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 14 | 76.55 miles (123.19 km) ENE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 78.35 miles (126.10 km) ENE | Stewart Aerodrome (ZST) | Stewart, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,613.47 miles (17,080.68 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,606.37 miles (17,069.25 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,604.66 miles (17,066.50 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,534.87 miles (16,954.19 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,530.27 miles (16,946.79 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,511.29 miles (16,916.24 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,467.00 miles (16,844.96 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,453.68 miles (16,823.52 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,430.20 miles (16,785.74 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,429.71 miles (16,784.96 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,414.06 miles (16,759.76 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,412.20 miles (16,756.77 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,400.60 miles (16,738.10 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,389.89 miles (16,720.87 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,389.67 miles (16,720.51 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 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 | |