Nonstop flight route between Porto Santo, Madeira, Portugal and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Porto Santo Airport (PXO), Porto Santo, Madeira, Portugal and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,565 miles (or 7,347 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 Porto Santo Airport and Henry Post Army Airfield, 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 Porto Santo Airport and Henry Post Army Airfield. 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 Porto Santo Airport (PXO):

• Porto Santo Airport (PXO) currently has only 1 runway.
• The closest airport to Porto Santo Airport (PXO) is Madeira Airport (FNC), which is located 36 miles (58 kilometers) SW of PXO.
• The furthest airport from Porto Santo Airport (PXO) is Lord Howe Island Airport (LDH), which is nearly antipodal to Porto Santo Airport (meaning Porto Santo Airport is almost on the exact opposite side of the Earth from Lord Howe Island Airport), and is located 12,150 miles (19,553 kilometers) away in Lord Howe Island, New South Wales, Australia.
• Porto Santo Airport handled 106,592 passengers last year.
• Because of Porto Santo Airport's relatively low elevation of 338 feet, planes can take off or land at Porto Santo 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 island of Porto Santo was the first of the Madeira Islands to obtain an airport.
• In addition to being known as "Porto Santo Airport", another name for PXO is "Aeroporto de Porto Santo".

Facts about Henry Post Army Airfield (FSI):

• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.