Nonstop flight route between Portland, Maine, United States and Porto, Portugal:

About this route:

A direct, nonstop flight between Portland International Jetport (PWM), Portland, Maine, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 3,073 miles (or 4,946 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 Portland International Jetport 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 Portland International Jetport 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 Portland International Jetport (PWM):

• In 2004 Runway 11/29 was lengthened to 7,200 feet.
• Portland International Jetport (PWM) has 2 runways.
• That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
• After Independence Air went bankrupt Portland had no low-cost carrier, causing fares to go up, and passenger numbers to decline.
• The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
• In 1972 Northeast Airlines was bought by Delta Air Lines which retained its routes to Bangor, Boston, and New York.
• Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport 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.
• Boston-Maine Airways had a monopoly on passenger air travel at Portland, which continued after the airline was renamed Northeast Airlines.
• The airport is the busiest in the state.
• The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Francisco Sá Carneiro Airport (OPO):

• 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.
• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• 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.
• 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.
• 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.