Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Alderney, Channel Islands, United Kingdom:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(49°42'24"N by 2°12'51"W)
Distance from CPS to ACI:
4,174.26 miles (6,717.81 km)
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Jump to:
- About this route
- CPS Airport Information
- ACI Airport Information
- Facts about CPS
- Facts about ACI
- 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 ACI
- List of Nearest Airports to ACI
- Map of Furthest Airports from ACI
- List of Furthest Airports from ACI
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Alderney Airport (ACI), Alderney, Channel Islands, United Kingdom would travel a Great Circle distance of 4,174 miles (or 6,718 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 Alderney 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 Alderney 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: | ACI / EGJA |
| Airport Name: | Alderney Airport |
| Location: | Alderney, Channel Islands, United Kingdom |
| GPS Coordinates: | 49°42'24"N by 2°12'51"W |
| Area Served: | Alderney |
| Operator/Owner: | States of Guernsey |
| Airport Type: | Public |
| Elevation: | 290 feet (88 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from ACI |
| More Information: | ACI Maps & Info |
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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Alderney Airport (ACI):
- In July 2013, airline Aurigny announced that from September it will launch direct flights to Jersey on a trial basis for a period of six weeks.
- Alderney has self manoeuvring stands.
- The terminal building, erected in 1968, contains an arrivals room and a departure lounge, with a check-in desk for the airport's only scheduled airline, Aurigny Air Services.
- Alderney Airport (ACI) has 3 runways.
- Because of Alderney Airport's relatively low elevation of 290 feet, planes can take off or land at Alderney 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 Alderney Airport (ACI) is Dunedin International Airport (DUD), which is located 11,999 miles (19,310 kilometers) away in Dunedin, Otago, New Zealand.
- The closest airport to Alderney Airport (ACI) is Guernsey Airport (GCI), which is located 26 miles (41 kilometers) SW of ACI.
| 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 | 25.58 miles (41.17 km) SW | Guernsey Airport (GCI) | Guernsey, Channel Islands, United Kingdom | |
| 2 | 33.27 miles (53.54 km) E | Cherbourg - Maupertus Airport (CER) | Cherbourg, France | |
| 3 | 34.46 miles (55.46 km) S | Jersey Airport (JER) | Jersey, Channel Islands, United Kingdom | |
| 4 | 75.96 miles (122.24 km) NNE | Bournemouth Airport (BOH) | Bournemouth, England, United Kingdom | |
| 5 | 77.55 miles (124.80 km) S | Dinard–Pleurtuit–Saint-Malo Airport (DNR) | Dinard, France | |
| 6 | 83.03 miles (133.62 km) NE | Bembridge Airport (BBP) | Bembridge, Isle of Wight, United Kingdom | |
| 7 | 85.84 miles (138.15 km) SSW | Saint-Brieuc - Armor Airport (SBK) | Saint-Brieuc, France | |
| 8 | 86.96 miles (139.95 km) SW | Lannion - Côte de Granit Airport (LAI) | Lannion, France | |
| 9 | 87.42 miles (140.68 km) ESE | Caen la Mer Airport (CFR) | Caen, France | |
| 10 | 88.62 miles (142.62 km) NW | Exeter International Airport (EXT) | Exeter, United Kingdom | |
| 11 | 93.88 miles (151.09 km) NNE | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| 12 | 97.39 miles (156.73 km) WNW | Plymouth City Airport (PLH) | Plymouth, United Kingdom | |
| 13 | 102.33 miles (164.68 km) NE | Chichester/Goodwood Airport (QUG) | Chichester, England, United Kingdom | |
| 14 | 103.75 miles (166.97 km) E | Le Havre - Octeville Airport (LEH) | Le Havre, France | |
| 15 | 105.26 miles (169.40 km) SW | Morlaix - Ploujean Airport (MXN) | Morlaix, France | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,998.89 miles (19,310.29 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 11,983.68 miles (19,285.81 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 3 | 11,952.46 miles (19,235.58 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 4 | 11,951.77 miles (19,234.46 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,946.97 miles (19,226.73 km) SW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 6 | 11,946.23 miles (19,225.54 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 7 | 11,944.17 miles (19,222.23 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 8 | 11,940.37 miles (19,216.11 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 9 | 11,936.42 miles (19,209.76 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 10 | 11,908.97 miles (19,165.58 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,904.45 miles (19,158.31 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,897.23 miles (19,146.69 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,895.41 miles (19,143.75 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,889.96 miles (19,134.99 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,869.83 miles (19,102.60 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |