Nonstop flight route between Alton, Illinois, United States and Daocheng, Sichuan, China:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(29°19'23"N by 100°3'11"E)
Distance from ALN to DCY:
7,678.98 miles (12,358.09 km)
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Jump to:
- About this route
- ALN Airport Information
- DCY Airport Information
- Facts about ALN
- Facts about DCY
- 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 DCY
- List of Nearest Airports to DCY
- Map of Furthest Airports from DCY
- List of Furthest Airports from DCY
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Daocheng Yading Airport (DCY), Daocheng, Sichuan, China would travel a Great Circle distance of 7,679 miles (or 12,358 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 Daocheng Yading 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 Daocheng Yading 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: | DCY / |
| Airport Names: |
|
| Location: | Daocheng, Sichuan, China |
| GPS Coordinates: | 29°19'23"N by 100°3'11"E |
| Area Served: | Daocheng, Sichuan, China |
| Airport Type: | Public |
| Elevation: | 14472 feet (4,411 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DCY |
| More Information: | DCY Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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 2,250 acres airfield sits at 544 ft MSL.
- 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 Daocheng Yading Airport (DCY):
- The furthest airport from Daocheng Yading Airport (DCY) is La Florida Airport (LSC), which is located 11,910 miles (19,167 kilometers) away in La Serena, Chile.
- Daocheng Yading Airport has a single runway that is 4,200 m long and 45 m wide.
- In addition to being known as "Daocheng Yading Airport", other names for DCY include "稻城亚丁机场", "Dàochéng Yàdīng Jīchǎng" and "ZUDC".
- Daocheng Yading Airport (DCY) currently has only 1 runway.
- The closest airport to Daocheng Yading Airport (DCY) is Dêqên Shangri-La Airport (DIG), which is located 108 miles (174 kilometers) SSW of DCY.
- Because of Daocheng Yading Airport's high elevation of 14,472 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DCY. Combined with a high temperature, this could make DCY a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Construction started after the airport was approved in April 2011, with a total investment of 1.58 billion yuan.
| 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 | 108.13 miles (174.02 km) SSW | Dêqên Shangri-La Airport (DIG) | Shangri-La, Yunnan, China | |
| 2 | 158.71 miles (255.41 km) SE | Xichang Qingshan Airport (XIC) | Qingshan, China | |
| 3 | 183.05 miles (294.59 km) S | Lijiang Sanyi Airport (LJG) | Lijiang City, Yunnan, China | |
| 4 | 195.73 miles (315.00 km) WNW | Qamdo Bamda Airport (BPX) | Qamdo Prefecture, Tibet Autonomous Region, China | |
| 5 | 248.69 miles (400.23 km) ENE | Chengdu Shuangliu International Airport (CTU) | Chengdu, Sichuan, China | |
| 6 | 254.23 miles (409.14 km) S | Dali Airport (DLU) | Dali, Yunnan, China | |
| 7 | 256.08 miles (412.12 km) WSW | Tezu Airport (TEI) | Tezu, Arunachal Pradesh, India | |
| 8 | 264.05 miles (424.95 km) ESE | Zhaotong Airport (ZAT) | Zhaotong, Yunnan, China | |
| 9 | 273.61 miles (440.34 km) E | Yibin Caiba Airport (YBP) | Yibin, Sichuan, China | |
| 10 | 295.31 miles (475.26 km) WSW | Pasighat Airport (IXT) | Pasighat (Passighat), India | |
| 11 | 299.98 miles (482.77 km) S | Baoshan Yunduan Airport (BSD) | Baoshan, Yunnan, China | |
| 12 | 301.36 miles (484.98 km) NW | Yushu Batang Airport (YUS) | Yushu County, Qinghai, China | |
| 13 | 314.22 miles (505.69 km) SSW | Tengchong Tuofeng Airport (TCZ) | Tengchong, Yunnan, China | |
| 14 | 314.96 miles (506.87 km) ENE | Mianyang Nanjiao Airport (MIG) | Mianyang, Sichuan, China | |
| 15 | 323.89 miles (521.26 km) E | Luzhou Lantian Airport (LZO) | Luzhou, Sichuan, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,909.93 miles (19,167.13 km) W | La Florida Airport (LSC) | La Serena, Chile | |
| 2 | 11,877.07 miles (19,114.25 km) WSW | Viña del Mar Airport (KNA) | Viña del Mar, Chile | |
| 3 | 11,840.47 miles (19,055.35 km) WSW | Chamonate Airfield (CPO) | Copiapó, Atacama Region, Chile | |
| 4 | 11,839.58 miles (19,053.92 km) SW | La Unión Airport (LUI) | La Unión, Honduras[disambiguation needed] | |
| 5 | 11,830.12 miles (19,038.69 km) WSW | Chañaral Airport (CNR) | Chañaral, Atacama Region, Chile | |
| 6 | 11,827.87 miles (19,035.06 km) WSW | Comodoro Arturo Merino Benítez International Airport (SCL) | Santiago, Chile | |
| 7 | 11,786.18 miles (18,967.98 km) SW | Carriel Sur International Airport (CCP) | Concepción, Bío Bío Region, Chile | |
| 8 | 11,781.04 miles (18,959.69 km) WSW | Ricardo García Posada Airport El Salvador Bajo Airport (ESR) | El Salvador, Chile | |
| 9 | 11,757.50 miles (18,921.82 km) SW | General Bernardo O'Higgins Airport (YAI) | Chillán, Ñuble, Chile | |
| 10 | 11,734.10 miles (18,884.16 km) WSW | Governor Francisco Gabrielli International Airport (MDZ) | Mendoza, Mendoza Province, Argentina | |
| 11 | 11,732.81 miles (18,882.08 km) WSW | Domingo Faustino Sarmiento Airport (UAQ) | San Juan Province, Argentina | |
| 12 | 11,722.53 miles (18,865.54 km) WSW | Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF) | Antofagasta, Chile | |
| 13 | 11,697.36 miles (18,825.03 km) SW | Comodoro D. Ricardo Salomón Airport (LGS) | Malargüe, Mendoza, Argentina | |
| 14 | 11,682.77 miles (18,801.54 km) SW | Carolina Airport (CLN) | Carolina, Maranhão, Brazil | |
| 15 | 11,682.18 miles (18,800.60 km) SSW | Victoria Airport (ZIC) | Victoria, Araucanía, Chile | |