Nonstop flight route between Chiang Rai, Thailand and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Chiang Rai International Airport (CEI), Chiang Rai, Thailand and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,478 miles (or 13,643 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 Chiang Rai International Airport and Henry Post Army Airfield, 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 Chiang Rai International Airport and Henry Post Army Airfield. 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 Chiang Rai International Airport (CEI):

• The airport is located about 10 km from the city centre.
• The furthest airport from Chiang Rai International Airport (CEI) is Maria Reiche Neuman Airport (NZC), which is located 11,947 miles (19,227 kilometers) away in Nazca, Ica Region, Peru.
• Chiang Rai International Airport handled 1,053,863 passengers last year.
• Chiang Rai International Airport (CEI) currently has only 1 runway.
• A new road which can be accessed by turning left upon exiting the airport also leads southbound to the city centre and is a less congested route, as it is not used by intercity buses heading north.
• The closest airport to Chiang Rai International Airport (CEI) is Tachilek Airport (THL), which is located 37 miles (59 kilometers) N of CEI.
• In addition to being known as "Chiang Rai International Airport", another name for CEI is "ท่าอากาศยานแม่ฟ้าหลวง เชียงราย".
• It consists of a single passenger terminal which features a Dairy Queen outlet as well as a Black Canyon Coffee along with several other shops, with both the international and domestic arrivals and departures handled on the same floor but in separate areas.

Facts about Henry Post Army Airfield (FSI):

• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.