Nonstop flight route between Tainan City, Taiwan, Republic of China and Helena, Montana, United States:
Departure Airport:
Arrival Airport:
Distance from TNN to HLN:
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- About this route
- TNN Airport Information
- HLN Airport Information
- Facts about TNN
- Facts about HLN
- Map of Nearest Airports to TNN
- List of Nearest Airports to TNN
- Map of Furthest Airports from TNN
- List of Furthest Airports from TNN
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Tainan Airport (TNN), Tainan City, Taiwan, Republic of China and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 6,633 miles (or 10,674 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 Tainan Airport and Helena 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 Tainan Airport and Helena 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: | 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 |
Arrival Airport Information:
IATA / ICAO Codes: | HLN / KHLN |
Airport Names: |
|
Location: | Helena, Montana, United States |
GPS Coordinates: | 46°36'24"N by 111°58'58"W |
Area Served: | Helena, Montana |
Operator/Owner: | Helena Regional Airport Authority |
Airport Type: | Public |
Elevation: | 3877 feet (1,182 meters) |
# of Runways: | 3 |
View all routes: | Routes from HLN |
More Information: | HLN Maps & Info |
Facts about Tainan Airport (TNN):
- On 16 April 1977, a FEAT Douglas C-47A B-247 was damaged beyond economic repair in a landing accident.
- A number of US units have been stationed at Tainan Air Base, including the 868th Tactical Missile Squadron from 1958 to 1962, which operated MGM-1 Matadors, probably under the ultimate control of the United States Taiwan Defense Command.
- Tainan Airport (TNN) has 2 runways.
- 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 closest airport to Tainan Airport (TNN) is Kaohsiung International Airport (Kaohsiung Siaogang Airport) (KHH), which is located 27 miles (44 kilometers) SSE of TNN.
- 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".
Facts about Helena Regional Airport (HLN):
- Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- Helena Regional Airport (HLN) has 3 runways.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
- The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.