Nonstop flight route between Christmas Island, Kiribati and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(1°59'9"N by 157°20'58"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from CXI to CPS:
4,910.18 miles (7,902.14 km)
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- About this route
- CXI Airport Information
- CPS Airport Information
- Facts about CXI
- Facts about CPS
- Map of Nearest Airports to CXI
- List of Nearest Airports to CXI
- Map of Furthest Airports from CXI
- List of Furthest Airports from CXI
- 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 Cassidy International Airport (CXI), Christmas Island, Kiribati and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 4,910 miles (or 7,902 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 Cassidy International Airport and St. Louis Downtown 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 Cassidy International Airport and St. Louis Downtown Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CXI / PLCH |
| Airport Name: | Cassidy International Airport |
| Location: | Christmas Island, Kiribati |
| GPS Coordinates: | 1°59'9"N by 157°20'58"W |
| Area Served: | Kiritimati |
| Operator/Owner: | Government |
| Airport Type: | Public |
| Elevation: | 5 feet (2 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CXI |
| More Information: | CXI 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 Cassidy International Airport (CXI):
- The closest airport to Cassidy International Airport (CXI) is Manihiki Island Airport (MHX), which is located 891 miles (1,433 kilometers) SSW of CXI.
- The furthest airport from Cassidy International Airport (CXI) is Ikela Airport (IKL), which is nearly antipodal to Cassidy International Airport (meaning Cassidy International Airport is almost on the exact opposite side of the Earth from Ikela Airport), and is located 12,367 miles (19,903 kilometers) away in Ikela, Democratic Republic of the Congo.
- Because of Cassidy International Airport's relatively low elevation of 5 feet, planes can take off or land at Cassidy 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.
- Cassidy International Airport (CXI) currently has only 1 runway.
- During World War II, the United States Army Air Forces Air Transport Command used the airport as a refuelling stop on its Pacific transport route from Hawaii to Kanton Island for flights to Australia and New Zealand as well as a staging point for attacks on the Gilbert Islands, then occupied by Japan.
- The airport is at an elevation of 5ft above mean sea level.
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 890.56 miles (1,433.22 km) SSW | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands |     |
| 2 | 1,044.58 miles (1,681.09 km) WSW | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 1,229.76 miles (1,979.10 km) N | Kona International Airport at Keāhole (KOA) | Kailua / Kona, Hawaii, United States | |
| 4 | 1,235.14 miles (1,987.75 km) N | Hilo International Airport (ITO) | Hilo, Hawaii, United States | |
| 5 | 1,238.50 miles (1,993.17 km) N | Pōhakuloa Training Area (BSF) | Camp Pohakuloa, Hawaii, United States | |
| 6 | 1,249.90 miles (2,011.52 km) N | Waimea-Kohala Airport (MUE) | Kamuela, Hawaii, United States | |
| 7 | 1,266.96 miles (2,038.97 km) N | Upolu Airport (UPP) | Hawi, Hawaii, United States | |
| 8 | 1,299.19 miles (2,090.84 km) N | Lanai Airport (LNY) | Lanai City, Hawaii, United States | |
| 9 | 1,302.72 miles (2,096.52 km) N | Hana Airport (HNM) | Hana, Hawaii, United States | |
| 10 | 1,305.95 miles (2,101.72 km) SSE | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 11 | 1,308.19 miles (2,105.33 km) N | Kahului Airport (OGG) | Kahului, Hawaii, United States | |
| 12 | 1,311.97 miles (2,111.41 km) N | Kapalua Airport (JHM) | Lahaina, Hawaii, United States | |
| 13 | 1,312.77 miles (2,112.69 km) NW | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 14 | 1,319.03 miles (2,122.77 km) SSE | Maupiti Airport (MAU) | Maupiti, Leeward Islands, French Polynesia | |
| 15 | 1,324.40 miles (2,131.41 km) N | Molokai Airport (MKK) | Kaunakakai, Hawaii, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,367.09 miles (19,902.85 km) SW | Ikela Airport (IKL) | Ikela, Democratic Republic of the Congo | |
| 2 | 12,324.95 miles (19,835.04 km) SSW | Lodja Airport (LJA) | Lodja, Democratic Republic of the Congo | |
| 3 | 12,267.24 miles (19,742.16 km) SE | Boende Airport (BNB) | Boende, Democratic Republic of the Congo | |
| 4 | 12,225.17 miles (19,674.45 km) SSW | Lusambo Airport (LBO) | Lusambo, Democratic Republic of the Congo | |
| 5 | 12,214.69 miles (19,657.59 km) SE | Basongo Airport (BAN) | Basongo, Democratic Republic of the Congo | |
| 6 | 12,207.64 miles (19,646.24 km) SSW | Yangambi Airport (YAN) | Yangambi, Democratic Republic of the Congo | |
| 7 | 12,202.38 miles (19,637.78 km) WSW | Kindu Airport (KND) | Kindu, Democratic Republic of the Congo | |
| 8 | 12,184.71 miles (19,609.34 km) SW | Bangoka International Airport (FKI) | Kisangani, Democratic Republic of the Congo | |
| 9 | 12,182.00 miles (19,604.97 km) E | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo | |
| 10 | 12,166.09 miles (19,579.37 km) S | Kananga Airport (KGA) | Kananga, Democratic Republic of the Congo | |
| 11 | 12,144.17 miles (19,544.10 km) SSW | Mbuji Mayi Airport (MJM) | Mbuji Mayi, Democratic Republic of the Congo | |
| 12 | 12,140.82 miles (19,538.70 km) SE | Idiofa Airport (IDF) | Idiofa, Democratic Republic of the Congo | |
| 13 | 12,139.66 miles (19,536.84 km) SE | Basankusu Airport (BSU) | Basankusu, Democratic Republic of the Congo | |
| 14 | 12,138.75 miles (19,535.38 km) NNE | Lisala Airport (LIQ) | Lisala, Democratic Republic of the Congo | |
| 15 | 12,135.41 miles (19,530.00 km) E | Inongo Airport (INO) | Inongo, Democratic Republic of the Congo | |
| 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 | |