Nonstop flight route between Colonsay, Inner Hebrides, Scotland, United Kingdom and Alton, Illinois, United States:
Departure Airport:
(56°3'26"N by 6°14'35"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from CSA to ALN:
3,828.17 miles (6,160.82 km)
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Jump to:
- About this route
- CSA Airport Information
- ALN Airport Information
- Facts about CSA
- Facts about ALN
- Map of Nearest Airports to CSA
- List of Nearest Airports to CSA
- Map of Furthest Airports from CSA
- List of Furthest Airports from CSA
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Colonsay Airport (CSA), Colonsay, Inner Hebrides, Scotland, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 3,828 miles (or 6,161 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 Colonsay Airport and St. Louis Regional 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 Colonsay Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CSA / |
| Airport Names: |
|
| Location: | Colonsay, Inner Hebrides, Scotland, United Kingdom |
| GPS Coordinates: | 56°3'26"N by 6°14'35"W |
| Area Served: | Colonsay |
| Operator/Owner: | Argyll and Bute Council |
| Airport Type: | Public |
| Elevation: | 44 feet (13 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CSA |
| More Information: | CSA Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Facts about Colonsay Airport (CSA):
- Colonsay Airport (CSA) currently has only 1 runway.
- In addition to being known as "Colonsay Airport", other names for CSA include "Port-adhair Colbhasaigh" and "EGEY".
- Because of Colonsay Airport's relatively low elevation of 44 feet, planes can take off or land at Colonsay 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 Colonsay Airport (CSA) is Ryan's Creek Aerodrome (SZS), which is located 11,759 miles (18,925 kilometers) away in Stewart Island, New Zealand.
- The closest airport to Colonsay Airport (CSA) is Islay Airport (ILY), which is located 26 miles (42 kilometers) S of CSA.
Facts about St. Louis Regional Airport (ALN):
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- In the spring of 2004 the airport was at the center of a scandal.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- West Star Aviation is the largest fixed base operations company at the airport.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 25.86 miles (41.62 km) S | Islay Airport (ILY) | Islay, Scotland, United Kingdom |     |
| 2 | 38.83 miles (62.50 km) NW | Tiree Airport (TRE) | Tiree, Scotland, United Kingdom | |
| 3 | 40.26 miles (64.80 km) NNW | Coll Island Airport (COL) | Coll, Scotland, United Kingdom | |
| 4 | 47.97 miles (77.20 km) SSE | Campbeltown Airport (CAL) | Campbeltown, Scotland, United Kingdom | |
| 5 | 71.16 miles (114.52 km) E | Glasgow International Airport (GLA) | Glasgow, Scotland, United Kingdom | |
| 6 | 74.41 miles (119.75 km) ESE | Glasgow-Prestwick Airport (PIK) | Prestwick (near Glasgow), Scotland, United Kingdom | |
| 7 | 78.77 miles (126.77 km) SSW | City of Derry Airport (LDY) | Derry, Northern Ireland, United Kingdom | |
| 8 | 80.85 miles (130.12 km) NW | Barra International Airport (BRR) | Barra, Scotland, United Kingdom | |
| 9 | 96.74 miles (155.68 km) S | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 10 | 100.52 miles (161.76 km) S | George Best Belfast City Airport (BHD) | Belfast, Northern Ireland, United Kingdom | |
| 11 | 107.11 miles (172.37 km) NNW | Benbecula Airport (BEB) | Benbecula, Scotland, United Kingdom | |
| 12 | 107.82 miles (173.51 km) SW | Donegal Airport (CFN) | Carrickfinn, Ireland | |
| 13 | 111.14 miles (178.86 km) E | Edinburgh Airport (EDI) | Edinburgh, United Kingdom | |
| 14 | 113.27 miles (182.30 km) ENE | Perth Airport (PSL) | Perth, Scotland, United Kingdom | |
| 15 | 126.45 miles (203.50 km) ENE | Dundee Airport (DND) | Dundee, Scotland, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,759.43 miles (18,924.92 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,730.52 miles (18,878.40 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,720.26 miles (18,861.89 km) SSE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,663.59 miles (18,770.68 km) SSE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,661.91 miles (18,767.98 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,643.59 miles (18,738.49 km) SSE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,629.25 miles (18,715.41 km) SSE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,617.08 miles (18,695.83 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 9 | 11,610.00 miles (18,684.44 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 10 | 11,592.61 miles (18,656.45 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 11 | 11,582.22 miles (18,639.73 km) SSE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,572.75 miles (18,624.49 km) SSE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,566.75 miles (18,614.83 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 14 | 11,551.03 miles (18,589.54 km) SSE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,506.63 miles (18,518.08 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |