Nonstop flight route between St. Louis, Missouri, United States and Ranong, Thailand:
Departure Airport:

Arrival Airport:

Distance from STL to UNN:
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- About this route
- STL Airport Information
- UNN Airport Information
- Facts about STL
- Facts about UNN
- Map of Nearest Airports to STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- 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 Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 9,035 miles (or 14,540 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 Lambert–St. Louis International 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 Lambert–St. Louis International 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: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL 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 Lambert–St. Louis International Airport (STL):
- Lambert–St. Louis International Airport (STL) has 4 runways.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- The April 1957 Official Airline Guide shows TWA with 44 weekday departures.
- On July 16, 2003, AA announced it was significantly reducing its Lambert hub effective November 1, 2003, cutting it from 417 daily flights to 207, effective November 1, 2003.
- In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- By 2013, flights at the airport had continued their steady growth, with 64 non-stop cities served, including 6 international destinations, St.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International 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.
- TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
Facts about Ranong Airport (UNN):
- 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.
- Ranong Airport (UNN) currently has only 1 runway.
- The closest airport to Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of 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.