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):

• For statistical purposes the base is delineated as a census-designated place by the U.S.
• In the years since 1959, Andrews' flight operations and importance have increased greatly.
• 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.
• On 12 July 1991, the 89th Military Airlift Wing was redesignated as the 89th Airlift Wing and assumed duties as the host wing at Andrews AFB.
• In the late 1950s Andrews began an annual open house and air show on base.
• Andrews' air defense role was strengthened in the 1950s with the latest in fighter-interceptor hardware appearing on the flight line.
• 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.
• There are two runways on the base.
• The host unit at Andrews is the 11th Wing, assigned to the Air Force District of Washington.

Facts about Francisco Sá Carneiro Airport (OPO):

• In 2007, the airport was voted the Best Airport in Europe in the Airport Service Quality Awards by Airports Council International.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• 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 closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
• 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.
• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.