Nonstop flight route between Porto, Portugal and Great Falls, Montana, United States:

About this route:

A direct, nonstop flight between Francisco Sá Carneiro Airport (OPO), Porto, Portugal and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 4,692 miles (or 7,552 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 Francisco Sá Carneiro Airport and Malmstrom Air Force Base, 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 Francisco Sá Carneiro Airport and Malmstrom Air Force Base. 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 Francisco Sá Carneiro Airport (OPO):

• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• STCP buses also link the airport and the city.
• 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.
• Porto Airport reached its six millionth passenger mark on 30 December 2011.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• 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.
• It includes an area of between 72 metres in the extreme south and 43 metres in the north.

Facts about Malmstrom Air Force Base (GFA):

• On 1 July 1968, the F-101B equipped 29th FIS was inactivated and replaced by the F-106 Delta Dart equipped 71st Fighter-Interceptor Squadron, which was reassigned from Richards Gebaur AFB when its ADC mission was eliminated.
• In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
• The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
• The 801st Radar Squadron was inactivated on 31 December 1969 due to budget reductions.
• The base's runway was closed on 31 December 1996 for aircraft operations.
• After World War II ended Great Falls AAB assumed a support mission for military personnel assigned to Alaskan military installations.
• The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.