Nonstop flight route between Porto, Portugal and San Antonio, Texas, United States:

About this route:

A direct, nonstop flight between Francisco Sá Carneiro Airport (OPO), Porto, Portugal and Lackland Air Force Base Joint Base San Antonio (SKF), San Antonio, Texas, United States would travel a Great Circle distance of 4,910 miles (or 7,902 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 Francisco Sá Carneiro 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 Francisco Sá Carneiro 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 Francisco Sá Carneiro Airport (OPO):

• It includes an area of between 72 metres in the extreme south and 43 metres in the north.
• The furthest airport from Francisco Sá Carneiro Airport (OPO) is Westport Airport (WSZ), which is nearly antipodal to Francisco Sá Carneiro Airport (meaning Francisco Sá Carneiro Airport is almost on the exact opposite side of the Earth from Westport Airport), and is located 12,400 miles (19,955 kilometers) away in Westport, New Zealand.
• Francisco Sá Carneiro Airport or simply Porto Airport is an international airport near Porto, Portugal.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
• Because of Francisco Sá Carneiro Airport's relatively low elevation of 226 feet, planes can take off or land at Francisco Sá Carneiro 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.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• Taxis service the city centre and there is a road link.

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

• 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.
• On 1 February 1953 the 741st Aircraft Control and Warning Squadron was activated at Lackland 29°23′16.4″N 98°37′59.9″W / 29.387889°N 98.633306°W / 29.387889.
• Lackland Air Force Base is home to the 37th Training Wing which operates a variety of training squadrons.
• 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.
• As a result of the Korean War, training populations at Lackland soared to 28 basic military training squadrons within the 3700th Military Training Wing.
• In October 2008 the BMT was expanded an extra two weeks to implement more air base defense training as well as other rudimentary skills.
• Construction on Lackland Air Force Base began on 15 Jun, 1941, and it was originally part of Kelly Field.
• Today the Lackland ADC site has been taken over by the FAA and remains in operation.