Nonstop flight route between Lisbon, Portugal and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Lisbon Portela Airport (LIS), Lisbon, Portugal and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,742 miles (or 7,632 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 Lisbon Portela 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 Lisbon Portela 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 Lisbon Portela Airport (LIS):

• Lisbon Portela Airport (LIS) has 2 runways.
• Carris city buses stop just outside Terminal 1 arrivals, with bus route 783 connecting to Marquis of Pombal Square, and Amoreiras and night route 208 to downtown Baixa and Cais do Sodré train station and to Gare do Oriente train station.
• The airport is now surrounded by urban development, being one of the few airports in Europe located inside a major city.
• In addition to being known as "Lisbon Portela Airport", another name for LIS is "Aeroporto da Portela".
• The closest airport to Lisbon Portela Airport (LIS) is Beja Airport (BYJ), which is located 81 miles (130 kilometers) SE of LIS.
• In November 2006, the company operating the airport, ANA – Aeroportos de Portugal, announced an expansion plan for some airport structures, in order to respond to current passenger traffic growth trends and full capacity use of the airport, originally intended to respond to growth until the new airport was to be finished in 2017.
• The furthest airport from Lisbon Portela Airport (LIS) is New Plymouth Airport (NPL), which is nearly antipodal to Lisbon Portela Airport (meaning Lisbon Portela Airport is almost on the exact opposite side of the Earth from New Plymouth Airport), and is located 12,258 miles (19,727 kilometers) away in New Plymouth, New Zealand.
• Because of Lisbon Portela Airport's relatively low elevation of 374 feet, planes can take off or land at Lisbon Portela 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 airport is the main hub of TAP Portugal and its subsidiary Portugália, a focus city for easyJet, Ryanair and SATA International and also the base for charter airlines euroAtlantic Airways, Hi Fly and White Airways.
• Lisbon Portela Airport handled 16,024,955 passengers last year.

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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.
• 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• 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 first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.