Nonstop flight route between St. Louis, Missouri, United States and Tainan City, Taiwan, Republic of China:
Departure Airport:

Arrival Airport:

Distance from STL to TNN:
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- About this route
- STL Airport Information
- TNN Airport Information
- Facts about STL
- Facts about TNN
- 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 TNN
- List of Nearest Airports to TNN
- Map of Furthest Airports from TNN
- List of Furthest Airports from TNN
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Tainan Airport (TNN), Tainan City, Taiwan, Republic of China would travel a Great Circle distance of 7,737 miles (or 12,452 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 Tainan 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 Tainan 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: | TNN / RCNN |
Airport Names: |
|
Location: | Tainan City, Taiwan, Republic of China |
GPS Coordinates: | 22°57'1"N by 120°12'20"E |
Operator/Owner: | Civil Aeronautics Administration |
Airport Type: | Public |
Elevation: | 63 feet (19 meters) |
# of Runways: | 2 |
View all routes: | Routes from TNN |
More Information: | TNN Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- Lambert–St. Louis International Airport (STL) has 4 runways.
- Lambert again grew in importance for TWA after the airline declared bankruptcy in 1993 and moved its headquarters to 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.
- 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.
- 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.
- However, TWA faced increasing problems as overall airline demand softened in response to a softening overall economy.
- In early October 2009, Southwest Airlines announced the addition of 6 daily flights to several cities it already served from St.
- American Airline's merger closed in April 2001, and the last TWA flight was flown on December 1, 2001.
- To handle the increasing passenger traffic, Minoru Yamasaki was commissioned to design a new terminal at Lambert.
Facts about Tainan Airport (TNN):
- The closest airport to Tainan Airport (TNN) is Kaohsiung International Airport (Kaohsiung Siaogang Airport) (KHH), which is located 27 miles (44 kilometers) SSE of TNN.
- On 16 April 1977, a FEAT Douglas C-47A B-247 was damaged beyond economic repair in a landing accident.
- Because of the shared use with the Air Force, the airport terminal was built quite a distance away from the airfield.
- Because of Tainan Airport's relatively low elevation of 63 feet, planes can take off or land at Tainan 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 Tainan Airport (TNN) is Dr. Luis María Argaña International Airport (ESG), which is nearly antipodal to Tainan Airport (meaning Tainan Airport is almost on the exact opposite side of the Earth from Dr. Luis María Argaña International Airport), and is located 12,355 miles (19,883 kilometers) away in Mariscal Estigarribia, Paraguay.
- In addition to being known as "Tainan Airport", other names for TNN include "臺南航空站台南機場" and "Táinán HángkōngzhànTáinán Jīchǎng".
- Tainan Airport (TNN) has 2 runways.