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

About this route:

A direct, nonstop flight between Glasgow International Airport (GGW), Glasgow, Montana, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 4,493 miles (or 7,230 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 Glasgow International Airport 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 Glasgow International Airport 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 Glasgow International Airport (GGW):

• The furthest airport from Glasgow International Airport (GGW) is Sir Gaëtan Duval Airport (RRG), which is located 10,393 miles (16,725 kilometers) away in Rodrigues Island, Mauritius.
• Glasgow International Airport (GGW) has 2 runways.
• As per the Federal Aviation Administration, this airport had 343 passenger boardings in calendar year 2008, 1,156 in 2009, and 1,630 in 2010.
• In addition to being known as "Glasgow International Airport", other names for GGW include "Wokal Field" and "(former Glasgow Army Airfield)".
• Glasgow International Airport is a public use airport located one nautical mile northeast of the central business district of Glasgow, a city in Valley County, Montana, United States.
• The closest airport to Glasgow International Airport (GGW) is L. M. Clayton Airport (OLF), which is located 49 miles (78 kilometers) E of GGW.

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.
• 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.
• 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.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• 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.
• Along with the airports in Lisbon, Horta, Faro, Flores, Santa Maria, Ponta Delgada and Beja, the airport's concessions to provide support to civil aviation was conceded to ANA Aeroportos de Portugal on 18 December 1998, under provisions of decree 404/98.
• 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 (OPO) currently has only 1 runway.