Nonstop flight route between Alton, Illinois, United States and Mascot (near Sydney), Australia:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(33°56'45"S by 151°10'37"E)
Distance from ALN to SYD:
9,079.44 miles (14,611.91 km)
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Jump to:
- About this route
- ALN Airport Information
- SYD Airport Information
- Facts about ALN
- Facts about SYD
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to SYD
- List of Nearest Airports to SYD
- Map of Furthest Airports from SYD
- List of Furthest Airports from SYD
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Sydney (Kingsford Smith) Airport (SYD), Mascot (near Sydney), Australia would travel a Great Circle distance of 9,079 miles (or 14,612 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 Regional Airport and Sydney (Kingsford Smith) 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 Regional Airport and Sydney (Kingsford Smith) Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | SYD / YSSY |
| Airport Names: |
|
| Location: | Mascot (near Sydney), Australia |
| GPS Coordinates: | 33°56'45"S by 151°10'37"E |
| Area Served: | Sydney |
| Operator/Owner: | Sydney Airport Corporation Limited |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from SYD |
| More Information: | SYD Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- 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.
Facts about Sydney (Kingsford Smith) Airport (SYD):
- In September 2012, Sydney Airport CEO Kerrie Mather announced the airport had abandoned the proposal to create alliance-based terminals in favour of terminals "based around specific airline requirements and transfer flows".
- The furthest airport from Sydney (Kingsford Smith) Airport (SYD) is Santa Maria Airport (SMA), which is nearly antipodal to Sydney (Kingsford Smith) Airport (meaning Sydney (Kingsford Smith) Airport is almost on the exact opposite side of the Earth from Santa Maria Airport), and is located 12,144 miles (19,543 kilometers) away in Santa Maria, Portugal.
- Since the international terminal's original completion, it has undergone two large expansions.
- In addition to being known as "Sydney (Kingsford Smith) Airport", another name for SYD is "Kingsford-Smith Airport".
- Sydney (Kingsford Smith) Airport (SYD) has 3 runways.
- The closest airport to Sydney (Kingsford Smith) Airport (SYD) is Bankstown Airport (BWU), which is located only 11 miles (18 kilometers) W of SYD.
- The Federal Government has bought most of the required land in a proposed site at Badgerys Creek, west of Sydney.
- Because of Sydney (Kingsford Smith) Airport's relatively low elevation of 21 feet, planes can take off or land at Sydney (Kingsford Smith) 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.
- Love established Mascot as a private concern, leasing 200 acres from the Kensington Race Club for three years.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10.93 miles (17.58 km) W | Bankstown Airport (BWU) | Bankstown (near Sydney), New South Wales, Australia | |
| 2 | 28.84 miles (46.41 km) WSW | Camden Aerodrome (CDU) | Camden, New South Wales, Australia | |
| 3 | 47.94 miles (77.15 km) SSW | Illawarra Regional Airport (WOL) | Shellharbour, Wollongong, New South Wales, Australia | |
| 4 | 66.55 miles (107.10 km) NNE | Belmont Airport (BEO) | Newcastle, New South Wales, Australia | |
| 5 | 80.56 miles (129.64 km) N | Cessnock Airport (CES) | Cessnock, New South Wales, Australia | |
| 6 | 87.73 miles (141.18 km) NNE | Maitland Airport (MTL) | Maitland, New South Wales, Australia | |
| 7 | 88.11 miles (141.80 km) NNE | Newcastle Airport (NTL) | Newcastle, New South Wales, Australia | |
| 8 | 95.21 miles (153.23 km) WNW | Bathurst Airport (BHS) | Bathurst, New South Wales, Australia | |
| 9 | 102.06 miles (164.25 km) SW | Goulburn Airport (GUL) | Goulburn, New South Wales, Australia | |
| 10 | 131.63 miles (211.84 km) NW | Mudgee Airport (DGE) | Mudgee, New South Wales, Australia | |
| 11 | 146.76 miles (236.19 km) SW | Canberra Airport (CBR) | Canberra, Australia | |
| 12 | 146.99 miles (236.56 km) SSW | Moruya Airport (MYA) | Moruya, New South Wales, Australia | |
| 13 | 175.52 miles (282.48 km) NNW | Coolah Airport (CLH) | Coolah, New South Wales, Australia | |
| 14 | 185.40 miles (298.38 km) WSW | Cootamundra Airport (CMD) | Cootamundra, New South Wales, Australia | |
| 15 | 190.76 miles (306.99 km) WNW | Forbes Airport (FRB) | Forbes, New South Wales, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,143.59 miles (19,543.17 km) NW | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 2 | 12,121.54 miles (19,507.68 km) NNW | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 3 | 12,120.72 miles (19,506.36 km) N | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 4 | 12,117.69 miles (19,501.48 km) N | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 5 | 12,090.40 miles (19,457.57 km) NNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 6 | 12,078.50 miles (19,438.41 km) N | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 7 | 12,035.09 miles (19,368.55 km) NNE | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 8 | 12,021.51 miles (19,346.70 km) NNE | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 9 | 11,736.45 miles (18,887.94 km) W | Madeira Airport (FNC) | Funchal, Madeira, Portugal | |
| 10 | 11,716.13 miles (18,855.24 km) W | Porto Santo Airport (PXO) | Porto Santo, Madeira, Portugal | |
| 11 | 11,687.72 miles (18,809.51 km) WNW | La Palma Airport (SPC) | La Palma, Canary Islands, Spain | |
| 12 | 11,637.71 miles (18,729.02 km) WNW | La Gomera Airport (GMZ) | Alajeró / San Sebastián, Canary Islands, Spain | |
| 13 | 11,609.16 miles (18,683.09 km) WNW | Tenerife North Airport (TFN) | Tenerife, Canary Islands, Spain | |
| 14 | 11,605.42 miles (18,677.06 km) WNW | Tenerife-South Airport (TFS) | Tenerife, Canary Islands, Spain | |
| 15 | 11,539.74 miles (18,571.37 km) WNW | Gran Canaria Airport (LPA) | Las Palmas, Canary Islands, Spain | |