Nonstop flight route between Tiree, Scotland, United Kingdom and Alton, Illinois, United States:
Departure Airport:
(56°29'57"N by 6°52'9"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from TRE to ALN:
3,795.31 miles (6,107.95 km)
Share this route:
Jump to:
- About this route
- TRE Airport Information
- ALN Airport Information
- Facts about TRE
- Facts about ALN
- Map of Nearest Airports to TRE
- List of Nearest Airports to TRE
- Map of Furthest Airports from TRE
- List of Furthest Airports from TRE
- 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 Tiree Airport (TRE), Tiree, Scotland, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 3,795 miles (or 6,108 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 Tiree 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 Tiree 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: | TRE / EGPU |
| Airport Name: | Tiree Airport |
| Location: | Tiree, Scotland, United Kingdom |
| GPS Coordinates: | 56°29'57"N by 6°52'9"W |
| Operator/Owner: | Highlands and Islands Airports Limited |
| Airport Type: | Public |
| Elevation: | 38 feet (12 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from TRE |
| More Information: | TRE 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 Tiree Airport (TRE):
- Because of Tiree Airport's relatively low elevation of 38 feet, planes can take off or land at Tiree 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 closest airport to Tiree Airport (TRE) is Coll Island Airport (COL), which is located only 12 miles (19 kilometers) NE of TRE.
- The airport is served by a scheduled service from Glasgow, operated by a Loganair Twin Otter.
- The furthest airport from Tiree Airport (TRE) is Ryan's Creek Aerodrome (SZS), which is located 11,740 miles (18,894 kilometers) away in Stewart Island, New Zealand.
- Tiree Airport (TRE) has 3 runways.
Facts about St. Louis Regional Airport (ALN):
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.92 miles (19.18 km) NE | Coll Island Airport (COL) | Coll, Scotland, United Kingdom |     |
| 2 | 38.83 miles (62.50 km) SE | Colonsay Airport (CSA) | Colonsay, Inner Hebrides, Scotland, United Kingdom | |
| 3 | 42.20 miles (67.92 km) NNW | Barra International Airport (BRR) | Barra, Scotland, United Kingdom | |
| 4 | 61.07 miles (98.28 km) SSE | Islay Airport (ILY) | Islay, Scotland, United Kingdom | |
| 5 | 70.34 miles (113.21 km) NNW | Benbecula Airport (BEB) | Benbecula, Scotland, United Kingdom | |
| 6 | 86.41 miles (139.06 km) SSE | Campbeltown Airport (CAL) | Campbeltown, Scotland, United Kingdom | |
| 7 | 101.27 miles (162.97 km) S | City of Derry Airport (LDY) | Derry, Northern Ireland, United Kingdom | |
| 8 | 103.20 miles (166.09 km) ESE | Glasgow International Airport (GLA) | Glasgow, Scotland, United Kingdom | |
| 9 | 111.34 miles (179.18 km) SE | Glasgow-Prestwick Airport (PIK) | Prestwick (near Glasgow), Scotland, United Kingdom | |
| 10 | 115.66 miles (186.14 km) SSW | Donegal Airport (CFN) | Carrickfinn, Ireland | |
| 11 | 120.27 miles (193.56 km) N | Stornoway Airport (SYY) | Stornoway, Scotland, United Kingdom | |
| 12 | 128.27 miles (206.44 km) NE | Inverness Airport (INV) | Inverness, Scotland, United Kingdom | |
| 13 | 129.78 miles (208.86 km) SSE | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 14 | 133.44 miles (214.76 km) E | Perth Airport (PSL) | Perth, Scotland, United Kingdom | |
| 15 | 135.68 miles (218.35 km) SSE | George Best Belfast City Airport (BHD) | Belfast, Northern Ireland, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,739.92 miles (18,893.52 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,710.09 miles (18,845.52 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,695.64 miles (18,822.25 km) S | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,640.18 miles (18,733.01 km) SSE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,635.28 miles (18,725.12 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,621.27 miles (18,702.57 km) SSE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,605.81 miles (18,677.69 km) SSE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,590.03 miles (18,652.29 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 9 | 11,588.99 miles (18,650.62 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 10 | 11,564.55 miles (18,611.30 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 11 | 11,556.88 miles (18,598.95 km) S | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,547.35 miles (18,583.62 km) S | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,537.53 miles (18,567.81 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 14 | 11,525.72 miles (18,548.80 km) S | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,479.60 miles (18,474.57 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 | |