Nonstop flight route between Port Heiden, Alaska, United States and San Antonio, Texas, United States:

About this route:

A direct, nonstop flight between Port Heiden Airport (PTH), Port Heiden, Alaska, United States and Lackland Air Force Base Joint Base San Antonio (SKF), San Antonio, Texas, United States would travel a Great Circle distance of 3,425 miles (or 5,512 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 Port Heiden Airport and Lackland Air Force Base Joint Base San Antonio, 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 Port Heiden Airport and Lackland Air Force Base Joint Base San Antonio. 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 Port Heiden Airport (PTH):

• Because of Port Heiden Airport's relatively low elevation of 95 feet, planes can take off or land at Port Heiden 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.
• Port Heiden Airport (PTH) has 2 runways.
• The Air Force remediated the radar site around 2000, removing all abandoned military structures and returning the site to a natural condition.
• In addition to being known as "Port Heiden Airport", other names for PTH include "Port Heiden Air Force Station" and "Fort Morrow Army Airfield".
• The furthest airport from Port Heiden Airport (PTH) is George Airport (GRJ), which is located 10,850 miles (17,462 kilometers) away in George, South Africa.
• The closest airport to Port Heiden Airport (PTH) is Chignik Fisheries Airport (KCG), which is located 44 miles (71 kilometers) S of PTH.

Facts about Lackland Air Force Base Joint Base San Antonio (SKF):

• The Vietnam War buildup necessitated a "split-phase" training from August 1965 to April 1966.
• In late 1951 Air Defense Command selected Lackland Air Force Base as one of twenty-eight radar stations built as part of the second segment of the permanent radar surveillance network.
• 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.
• Joint Base San Antonio, which includes Lackland Air Force Base, was established in accordance with congressional legislation implementing the recommendations of the 2005 Base Realignment and Closure Commission.
• 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.
• Construction on Lackland Air Force Base began on 15 Jun, 1941, and it was originally part of Kelly Field.
• 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.