Nonstop flight route between Thanh Hoa, Vietnam and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Tho Xuan Airport (THD), Thanh Hoa, Vietnam and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,355 miles (or 13,445 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 Tho Xuan 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 Tho Xuan 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 Tho Xuan Airport (THD):

• In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".
• The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.
• The furthest airport from Tho Xuan Airport (THD) is Ilo Airport (ILQ), which is nearly antipodal to Tho Xuan Airport (meaning Tho Xuan Airport is almost on the exact opposite side of the Earth from Ilo Airport), and is located 12,178 miles (19,599 kilometers) away in Ilo, Moquegua Region, Peru.

Facts about Henry Post Army Airfield (FSI):

• Post Field served as a base for flight training for the Air Service.
• 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• 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.