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):

• The airport's infrastructure has improved over time, with increases to the runway length and in ramp surface.
• 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.
• In addition to being known as "Porto Santo Airport", another name for PXO is "Aeroporto de Porto Santo".
• 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.

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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.