Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ranong, Thailand:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(9°46'38"N by 98°35'7"E)
Distance from CPS to UNN:
9,049.08 miles (14,563.05 km)
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Jump to:
- About this route
- CPS Airport Information
- UNN Airport Information
- Facts about CPS
- Facts about UNN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to UNN
- List of Nearest Airports to UNN
- Map of Furthest Airports from UNN
- List of Furthest Airports from UNN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 9,049 miles (or 14,563 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 Downtown Airport and Ranong 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 Downtown Airport and Ranong Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | UNN / VTSR |
| Airport Name: | Ranong Airport |
| Location: | Ranong, Thailand |
| GPS Coordinates: | 9°46'38"N by 98°35'7"E |
| Area Served: | Tambon Ratchakrut, Amphoe Mueang Ranong, Ranong, Thailand |
| Operator/Owner: | Government |
| Elevation: | 57 feet (17 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UNN |
| More Information: | UNN Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Ranong Airport (UNN):
- The furthest airport from Ranong Airport (UNN) is Capitán FAP Carlos Martínez de Pinillos International Airport (TRU), which is nearly antipodal to Ranong Airport (meaning Ranong Airport is almost on the exact opposite side of the Earth from Capitán FAP Carlos Martínez de Pinillos International Airport), and is located 12,241 miles (19,699 kilometers) away in Trujillo, Peru.
- Ranong Airport (UNN) currently has only 1 runway.
- Because of Ranong Airport's relatively low elevation of 57 feet, planes can take off or land at Ranong 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 Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of UNN.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.05 miles (30.66 km) N | Kawthaung Airport (KAW) | Kawthaung, Myanmar (Burma) | |
| 2 | 58.25 miles (93.74 km) SE | Surat Thani International Airport (URT) | Surat Thani, Thailand | |
| 3 | 83.36 miles (134.15 km) NE | Chumphon Airport (CJM) | Chumphon, Thailand | |
| 4 | 101.84 miles (163.90 km) E | Samui International Airport (USM) | Ko Samui, Surat Thani, Thailand | |
| 5 | 116.45 miles (187.41 km) S | Phuket International Airport (HKT) | Phuket, Thailand | |
| 6 | 119.01 miles (191.53 km) SSE | Krabi International Airport (KBV) | Krabi, Thailand | |
| 7 | 171.86 miles (276.57 km) SSE | Trang Airport (TST) | Trang, Thailand | |
| 8 | 183.96 miles (296.05 km) N | Myeik Airport (MGZ) | Myeik, Myanmar (Burma) | |
| 9 | 218.13 miles (351.05 km) NNE | Hua Hin Airport (HHQ) | Hua Hin, Thailand | |
| 10 | 232.14 miles (373.59 km) SSE | Hat Yai International Airport (HDY) | Hat Yai, Songkhla Province, Thailand | |
| 11 | 250.59 miles (403.29 km) SSE | Langkawi International Airport (LGK) | Langkawi, Kedah, Malaysia | |
| 12 | 259.03 miles (416.86 km) NE | U-Tapao-Rayong-Pattaya International Airport (UTP) | Rayong, Thailand | |
| 13 | 271.23 miles (436.50 km) SE | Pattani Airport (PAN) | Pattani, Thailand | |
| 14 | 276.98 miles (445.75 km) SSE | Sultan Abdul Halim Airport (AOR) | Alor Star, Kedah, Malaysia | |
| 15 | 300.02 miles (482.83 km) N | Dawei Airport (TVY) | Dawei, Myanmar (Burma) | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,240.56 miles (19,699.23 km) SW | Capitán FAP Carlos Martínez de Pinillos International Airport (TRU) | Trujillo, Peru | |
| 2 | 12,235.06 miles (19,690.38 km) WSW | Teniente FAP Jaime Montreuil Morales Airport (CHM) | Chimbote, Ancash Region, Peru | |
| 3 | 12,203.45 miles (19,639.49 km) SSW | Cap. FAP José A. Quiñones González International Airport (CIX) | Chiclayo, Peru | |
| 4 | 12,175.08 miles (19,593.85 km) W | Comandante FAP Germán Arias Graziani Airport (ATA) | Huaraz, Peru | |
| 5 | 12,166.25 miles (19,579.63 km) SW | Mayor General FAP Armando Revoredo Iglesias (CJA) | Cajamarca, Peru | |
| 6 | 12,115.84 miles (19,498.50 km) S | Cap. FAP Guillermo Concha Iberico International Airport (PIU) | Piura, Peru | |
| 7 | 12,106.41 miles (19,483.32 km) WSW | Jorge Chávez International Airport (LIM) | Callao (near Lima), Peru | |
| 8 | 12,089.95 miles (19,456.84 km) SW | Chachapoyas Airport (CHH) | Chachapoyas, Peru | |
| 9 | 12,082.04 miles (19,444.12 km) W | Alf. FAP David Figueroa Fernandini (HUU) | Huánuco, Huánuco Region, Peru | |
| 10 | 12,077.27 miles (19,436.43 km) S | Cap. FAP Victor Montes Arias Airport (TYL) | Talara, Peru | |
| 11 | 12,069.41 miles (19,423.78 km) WSW | Juanjuí Airport (JJI) | Juanjuí, Peru | |
| 12 | 12,066.61 miles (19,419.29 km) W | Tingo María Airport (TGI) | Tingo María, Peru | |
| 13 | 12,050.30 miles (19,393.03 km) SSW | José María Velasco Ibarra Airport (MRR) | Macará, Ecuador | |
| 14 | 12,013.48 miles (19,333.78 km) SSW | Camilo Ponce Enriquez Airport (LOH) | Loja, Ecuador | |
| 15 | 12,010.42 miles (19,328.84 km) WSW | Jauja AirportFrancisco Carle Airport (JAU) | Jauja, Peru | |