Nonstop flight route between Harlingen, Texas, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Valley International Airport (HRL), Harlingen, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 584 miles (or 939 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 relatively short distance between Valley International Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Valley International Airport (HRL):

• The furthest airport from Valley International Airport (HRL) is Sir Gaëtan Duval Airport (RRG), which is located 11,151 miles (17,946 kilometers) away in Rodrigues Island, Mauritius.
• Valley International Airport (HRL) has 3 runways.
• On April 2, 2012, a United Airlines, Flight 4128, made an emergency landing at Corpus Christi due to unknown reason when it suffered damage to its front landing gear and also experienced a flat tire.
• The closest airport to Valley International Airport (HRL) is Brownsville/South Padre Island International Airport (BRO), which is located 26 miles (42 kilometers) SSE of HRL.
• After the airport's closure by the military, it was turned over to the local government and converted to civil use as Valley International Airport after Hurricane Beulah flooded the original Harlingen civil airport in 1967.
• Because of Valley International Airport's relatively low elevation of 36 feet, planes can take off or land at Valley 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.

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• 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.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.