Nonstop flight route between San Antonio, Texas, United States and Union Island, Saint Vincent and the Grenadines:

About this route:

A direct, nonstop flight between San Antonio International Airport (SAT), San Antonio, Texas, United States and Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines would travel a Great Circle distance of 2,644 miles (or 4,255 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 San Antonio International Airport and Union Island 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 San Antonio International Airport and Union Island 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 San Antonio International Airport (SAT):

• San Antonio International Airport (SAT) has 3 runways.
• The former Terminal 2 was built in 1951–53, along with the FAA control tower and a baggage claim area.
• San Antonio International Airport handled 8,034,720 passengers last year.
• San Antonio International Airport is owned by the City of San Antonio and operated by the San Antonio Aviation Department.
• On November 9, 2010, San Antonio International Airport announced the opening of the brand new Terminal B, which contains 8 gates,.
• At the end of the war the airfield was no longer needed by the military and was turned over to the City of San Antonio for civil use.
• The shortest flight from San Antonio International Airport is to Houston's George Bush Intercontinental Airport, a distance of 191 miles, with an average duration of 50 minutes.
• Because of San Antonio International Airport's relatively low elevation of 809 feet, planes can take off or land at San Antonio 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.
• The furthest airport from San Antonio International Airport (SAT) is Sir Gaëtan Duval Airport (RRG), which is located 11,114 miles (17,886 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to San Antonio International Airport (SAT) is Randolph Air Force Base Joint Base San Antonio (RND), which is located only 12 miles (19 kilometers) E of SAT.
• The longest flight from San Antonio International Airport is to Seattle–Tacoma International Airport, a distance of 1,776 miles, with an average duration of 4 hours 7 minutes.

Facts about Union Island Airport (UNI):

• Because of Union Island Airport's relatively low elevation of 14 feet, planes can take off or land at Union Island 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 closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of UNI.
• Union Island Airport (UNI) currently has only 1 runway.
• The furthest airport from Union Island Airport (UNI) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Union Island Airport (meaning Union Island Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,203 miles (19,639 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.