Nonstop flight route between San Antonio, Texas, United States and St. Helens, Tasmania, Australia:

About this route:

A direct, nonstop flight between Lackland Air Force Base Joint Base San Antonio (SKF), San Antonio, Texas, United States and St Helens Airport (HLS), St. Helens, Tasmania, Australia would travel a Great Circle distance of 8,673 miles (or 13,958 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 Lackland Air Force Base Joint Base San Antonio and St Helens 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 Lackland Air Force Base Joint Base San Antonio and St Helens 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 Lackland Air Force Base Joint Base San Antonio (SKF):

• The closest airport to Lackland Air Force Base Joint Base San Antonio (SKF) is Stinson Municipal Airport (SSF), which is located only 7 miles (12 kilometers) ESE of SKF.
• In 1965 AN/FPS-20A was upgraded to an AN/FPS-91A radar, then in 1969 it was modified to an AN/FPS-66A.
• No other item in the 1960s compared to the incident that occurred at Lackland in February 1966 with the death of a basic trainee.
• During the 1960s, more permanent facilities were constructed, including four 1,000-person steel and brick Recruit Housing and Training dormitories built between 1966 and 1970 for basic military training by the Lackland Military Training Center.
• As a result of the Korean War, training populations at Lackland soared to 28 basic military training squadrons within the 3700th Military Training Wing.
• Lackland Air Force Base is home to the 37th Training Wing which operates a variety of training squadrons.
• The furthest airport from Lackland Air Force Base Joint Base San Antonio (SKF) is Sir Gaëtan Duval Airport (RRG), which is located 11,124 miles (17,902 kilometers) away in Rodrigues Island, Mauritius.
• Lackland now consists of the Kelly airstrip, Security Hill, main base Lackland, and the old Medina officer training base now named Medina/Lackland Training Annex.

Facts about St Helens Airport (HLS):

• The closest airport to St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.
• St Helens Airport (HLS) currently has only 1 runway.
• Because of St Helens Airport's relatively low elevation of 158 feet, planes can take off or land at St Helens 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 furthest airport from St Helens Airport (HLS) is Corvo Airport (CVU), which is nearly antipodal to St Helens Airport (meaning St Helens Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,317 miles (19,823 kilometers) away in Corvo Island, Azores, Portugal.