Nonstop flight route between Udon Thani, Thailand and Ketchikan, Alaska, United States:

About this route:

A direct, nonstop flight between Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH), Udon Thani, Thailand and Ketchikan Harbor Seaplane Base (WFB), Ketchikan, Alaska, United States would travel a Great Circle distance of 6,495 miles (or 10,452 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 Udon Thani International Airport ท่าอากาศยานอุดรธานี and Ketchikan Harbor Seaplane Base, 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 Udon Thani International Airport ท่าอากาศยานอุดรธานี and Ketchikan Harbor Seaplane Base. 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 Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH):

• As well as being a commercial facility, Udon Thani International Airport is also an active Royal Thai Air Force base, the home of Wing 23, 2nd Air Division Air Combat Command.
• Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) currently has only 1 runway.
• Udon Thani International Airport is an airport located near the city of Udon Thani in Udon Thani Province in the northeast region of Thailand.
• The closest airport to Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) is Wattay International Airport (VTE), which is located 44 miles (71 kilometers) NNW of UTH.
• Because of Udon Thani International Airport ท่าอากาศยานอุดรธานี's relatively low elevation of 579 feet, planes can take off or land at Udon Thani International Airport ท่าอากาศยานอุดรธานี 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.
• During the Vietnam War the facility was known as Udorn Royal Thai Air Force Base, serving as a front-line base of the United States Air Force and was the Asian Headquarters for Air America.
• The furthest airport from Udon Thani International Airport ท่าอากาศยานอุดรธานี (UTH) is Maria Reiche Neuman Airport (NZC), which is nearly antipodal to Udon Thani International Airport ท่าอากาศยานอุดรธานี (meaning Udon Thani International Airport ท่าอากาศยานอุดรธานี is almost on the exact opposite side of the Earth from Maria Reiche Neuman Airport), and is located 12,207 miles (19,645 kilometers) away in Nazca, Ica Region, Peru.

Facts about Ketchikan Harbor Seaplane Base (WFB):

• The closest airport to Ketchikan Harbor Seaplane Base (WFB) is Ketchikan International Airport (KTN), which is located only 2 miles (3 kilometers) WNW of WFB.
• Because of Ketchikan Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Ketchikan Harbor Seaplane Base 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.
• Ketchikan Harbor Seaplane Base is a privately owned, public use seaplane base located at the harbor of Ketchikan, a city in the Ketchikan Gateway Borough of the U.S.
• Ketchikan Harbor Seaplane Base has one seaplane landing area designated NW/SE which measures 10,000 x 1,500 ft.
• Ketchikan Harbor Seaplane Base (WFB) currently has only 1 runway.
• The furthest airport from Ketchikan Harbor Seaplane Base (WFB) is Port Alfred Airport (AFD), which is located 10,613 miles (17,079 kilometers) away in Port Alfred, South Africa.
• In addition to being known as "Ketchikan Harbor Seaplane Base", another name for WFB is "5KE".