Nonstop flight route between Camp Springs, Maryland, United States and Porto, Portugal:

About this route:

A direct, nonstop flight between Andrews Field (ADW), Camp Springs, Maryland, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 3,516 miles (or 5,658 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 Andrews Field and Francisco Sá Carneiro 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 Andrews Field and Francisco Sá Carneiro 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 Andrews Field (ADW):

• Union American Civil War used a country church near Camp Springs, Maryland for sleeping quarters and on 25 August 1941, President Roosevelt directed use of the land for an airfield.
• Joint Base Andrews was designated on 1 October 2009 and on 1 October 2010, the Air Force completed the merge of the 11th Wing and the 316th at Joint Base Andrews.
• The airfield had 5,500 feet runways by 1944 when the 90th Fighter Control Squadron was formed, and the last Camp Springs combat units departed for WWII combat on 10 April 1944.
• For statistical purposes the base is delineated as a census-designated place by the U.S.
• In 1963, the Naval Air Facility, originally established at the former NAS Anacostia in 1919, moved to Andrews.
• The closest airport to Andrews Field (ADW) is Bolling Air Force Base (BOF), which is located only 8 miles (13 kilometers) WNW of ADW.
• The furthest airport from Andrews Field (ADW) is Margaret River Airport (MGV), which is located 11,691 miles (18,815 kilometers) away in Margaret River, Western Australia, Australia.
• Andrews Field was named on 7 February 1945 in honor of Lt Gen.

Facts about Francisco Sá Carneiro Airport (OPO):

• On 25 February 2008, Airports Council International announced that according to its 2007 Airport Service Quality Survey, Porto placed first overall in Europe for service and placed fourth among airports worldwide having fewer than 5 million passengers.
• It includes an area of between 72 metres in the extreme south and 43 metres in the north.
• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• The furthest airport from Francisco Sá Carneiro Airport (OPO) is Westport Airport (WSZ), which is nearly antipodal to Francisco Sá Carneiro Airport (meaning Francisco Sá Carneiro Airport is almost on the exact opposite side of the Earth from Westport Airport), and is located 12,400 miles (19,955 kilometers) away in Westport, New Zealand.
• The airport is served by Line E of the Porto Metro.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• In 2007, the airport was voted the Best Airport in Europe in the Airport Service Quality Awards by Airports Council International.
• Because of Francisco Sá Carneiro Airport's relatively low elevation of 226 feet, planes can take off or land at Francisco Sá Carneiro 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.