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

About this route:

A direct, nonstop flight between Halliburton Field (DUC), Duncan, Oklahoma, United States and Lisbon Portela Airport (LIS), Lisbon, Portugal would travel a Great Circle distance of 4,728 miles (or 7,609 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 Halliburton Field 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 Halliburton Field 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 Halliburton Field (DUC):

• Halliburton Field (DUC) currently has only 1 runway.
• The furthest airport from Halliburton Field (DUC) is Sir Gaëtan Duval Airport (RRG), which is located 10,908 miles (17,554 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Halliburton Field", another name for DUC is "Duncan Municipal Airport".
• The closest airport to Halliburton Field (DUC) is Lawton–Fort Sill Regional Airport (LAW), which is located 27 miles (43 kilometers) WNW of DUC.

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.
• The closest airport to Lisbon Portela Airport (LIS) is Beja Airport (BYJ), which is located 81 miles (130 kilometers) SE of LIS.
• The selection of Alcochete was announced on 10 January 2008, more than 35 years after the first capacity increase studies were initiated.
• 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.
• In addition to being known as "Lisbon Portela Airport", another name for LIS is "Aeroporto da Portela".
• Lisbon Portela Airport (LIS) has 2 runways.
• Lisbon Portela Airport handled 16,024,955 passengers last year.
• 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.
• 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.
• A major upgrade in 1959–62 included a new runway capable of taking the first generation jets, Boeing 707 and Douglas DC-8.
• The TAP catering subsidiary, Catering de Portugal, S.A.
• Lisbon airport has an underground Metro de Lisboa station at the Southern edge of the Terminal 1 arrivals area.