Nonstop flight route between Tainan City, Taiwan, Republic of China and Portland, Oregon, United States:

About this route:

A direct, nonstop flight between Tainan Airport (TNN), Tainan City, Taiwan, Republic of China and Portland International Airport (PDX), Portland, Oregon, United States would travel a Great Circle distance of 6,282 miles (or 10,109 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 Portland International 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 Portland International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Tainan Airport (TNN):

• On 21 March 2003, TransAsia Airways flight 543 on a flight from Taipei Songshan Airport to Tainan Airport, collided with a truck that was on runway 36R.
• On 16 April 1977, a FEAT Douglas C-47A B-247 was damaged beyond economic repair in a landing accident.
• 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".
• 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.
• International flights began on 18 July 2013 to Hong Kong, with a 3 times weekly service by China Airlines using Boeing 737-800s.
• 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.
• On 24 February 1969, Far Eastern Air Transport Flight 104, a Handley Page Dart Herald with 36 passengers and crew board, crashed while attempting an emergency landing at Tainan.
• 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.
• Because of the shared use with the Air Force, the airport terminal was built quite a distance away from the airfield.

Facts about Portland International Airport (PDX):

• The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
• Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland 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 April 1957 OAG shows 38 United departures a day, 10 West Coast, 8 Northwest and 6 Western.
• The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
• Portland International Airport handled 1,502,956 passengers last year.
• A new terminal opened in 1959, which for the most part serves as the present facility.
• The early 1990s saw a food court and extension added to Concourse C, and the opening of the new Concourse D in 1994.
• PDX has a shopping mall behind its ticketing counters, with all shops and restaurants open every day.
• Portland International Airport (PDX) has 3 runways.
• In 1925 aviation proponents proposed an airport for Portland on Swan Island, northwest of downtown Portland on the Willamette River.