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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lisbon Portela Airport (LIS), Lisbon, Portugal 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 Henry Post Army Airfield and Lisbon Portela 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 Henry Post Army Airfield and Lisbon Portela 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 Henry Post Army Airfield (FSI):

• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• 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.
• Post Field served as a base for flight training for the Air Service.

Facts about Lisbon Portela Airport (LIS):

• 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.
• Terminal 2 is used by 4 scheduled low-cost flight airlines for departures to European, North Atlantic islands and North African destinations, while Terminal 1 handles all arrivals and regular scheduled and chartered flights from most major European and North American air carriers.
• Lisbon Portela Airport (LIS) has 2 runways.
• ANA – Aeroportos de Portugal has its head office in Building 120.
• The closest airport to Lisbon Portela Airport (LIS) is Beja Airport (BYJ), which is located 81 miles (130 kilometers) SE of LIS.
• Two bicycle paths connect the airport roundabout, situated 300m South of Terminal 1 to the city's 50 km cycle infrastructure network.
• 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.
• Lisbon Portela Airport handled 16,024,955 passengers last year.
• In addition to being known as "Lisbon Portela Airport", another name for LIS is "Aeroporto da Portela".