Nonstop flight route between Thanh Hoa, Vietnam and Alton, Illinois, United States:
Departure Airport:
(19°54'6"N by 105°28'4"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from THD to ALN:
8,252.37 miles (13,280.87 km)
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Jump to:
- About this route
- THD Airport Information
- ALN Airport Information
- Facts about THD
- Facts about ALN
- Map of Nearest Airports to THD
- List of Nearest Airports to THD
- Map of Furthest Airports from THD
- List of Furthest Airports from THD
- 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 Tho Xuan Airport (THD), Thanh Hoa, Vietnam and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 8,252 miles (or 13,281 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 Tho Xuan 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 Tho Xuan 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: | THD / |
| Airport Names: |
|
| Location: | Thanh Hoa, Vietnam |
| GPS Coordinates: | 19°54'6"N by 105°28'4"E |
| Operator/Owner: | Vietnam People's Air Force |
| Airport Type: | Military, planned for civilian use in 2013 |
| View all routes: | Routes from THD |
| More Information: | THD 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 Tho Xuan Airport (THD):
- In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".
- The furthest airport from Tho Xuan Airport (THD) is Ilo Airport (ILQ), which is nearly antipodal to Tho Xuan Airport (meaning Tho Xuan Airport is almost on the exact opposite side of the Earth from Ilo Airport), and is located 12,178 miles (19,599 kilometers) away in Ilo, Moquegua Region, Peru.
- The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 81.57 miles (131.28 km) S | Vinh Airport (VII) | Vinh, Nghe An, Vietnam |     |
| 2 | 93.77 miles (150.91 km) NNE | Nội Bài International Airport (HAN) | Hanoi, Vietnam | |
| 3 | 103.19 miles (166.06 km) NE | Cat Bi International Airport (HPH) | Haiphong, Vietnam | |
| 4 | 152.96 miles (246.16 km) WSW | Xieng Khouang Airport (XKH) | Xieng Khouang, Laos | |
| 5 | 182.15 miles (293.14 km) SSW | Nakhon Phanom Airport (KOP) | Nakhon Phanom, Thailand | |
| 6 | 189.66 miles (305.23 km) WNW | Dien Bien Phu Airport (DIN) | Dien Bien Phu, Vietnam | |
| 7 | 214.84 miles (345.75 km) W | Luang Prabang International Airport (LPQ) | Luang Prabang, Laos | |
| 8 | 231.30 miles (372.23 km) SW | Wattay International Airport (VTE) | Vientiane, Laos | |
| 9 | 231.54 miles (372.62 km) WNW | Oudomsay Airport (ODY) | Muang Xay, Laos | |
| 10 | 235.74 miles (379.39 km) SSW | Savannakhet Airport (ZVK) | Savannakhet, Laos | |
| 11 | 246.91 miles (397.37 km) SW | Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) | Udon Thani, Thailand | |
| 12 | 247.49 miles (398.29 km) W | Sayaboury Airport (ZBY) | Sayaboury, Laos | |
| 13 | 255.53 miles (411.23 km) NE | Nanning Wuxu International Airport (NNG) | Nanning, Guangxi, China | |
| 14 | 263.27 miles (423.70 km) NNW | Wenshan Puzhehei Airport (WNH) | Wenshan, Yunnan, China | |
| 15 | 271.91 miles (437.59 km) ENE | Beihai Fucheng Airport (BHY) | Beihai, Guangxi, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,178.48 miles (19,599.32 km) SW | Ilo Airport (ILQ) | Ilo, Moquegua Region, Peru | |
| 2 | 12,151.34 miles (19,555.64 km) W | Diego Aracena International Airport (IQQ) | Iquique, Chile | |
| 3 | 12,142.77 miles (19,541.85 km) WSW | Chacalluta International Airport (ARI) | Arica, Chile | |
| 4 | 12,142.77 miles (19,541.85 km) WSW | Chacalluta International Airport (ACM) | Arica, Amazonas, Colombia | |
| 5 | 12,123.73 miles (19,511.21 km) SW | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 6 | 12,101.58 miles (19,475.56 km) SW | Carolina Airport (CLN) | Carolina, Maranhão, Brazil | |
| 7 | 12,086.91 miles (19,451.94 km) S | Maria Reiche Neuman Airport (NZC) | Nazca, Ica Region, Peru | |
| 8 | 12,077.97 miles (19,437.57 km) SW | Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF) | Antofagasta, Chile | |
| 9 | 12,032.57 miles (19,364.49 km) WSW | El Loa Airport (CJC) | Calama, Antofagasta Region, Chile | |
| 10 | 12,016.39 miles (19,338.46 km) SW | Inca Manco Cápac International Airport (JUL) | Juliaca, Peru | |
| 11 | 12,002.14 miles (19,315.52 km) S | Andahuaylas Airport (ANS) | Andahuaylas, Peru | |
| 12 | 11,997.02 miles (19,307.29 km) SSE | Capitán FAP Renán Elías Olivera International Airport (PIO) | Pisco, Peru | |
| 13 | 11,970.12 miles (19,264.00 km) S | Coronel FAP Alfredo Mendívil Duarte Airport (AYP) | Ayacucho, Peru | |
| 14 | 11,970.12 miles (19,264.00 km) S | Coronel FAP Alfredo Mendívil Duarte Airport (AYC) | Ayacucho, Peru | |
| 15 | 11,964.81 miles (19,255.44 km) SSW | Alejandro Velasco Astete International Airport (CUZ) | Cusco, Cusco Region, Peru | |
| 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 | |