Nonstop flight route between Portimão, Algarve, Portugal and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between Portimão Airport (PRM), Portimão, Algarve, Portugal and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 4,329 miles (or 6,966 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 Portimão Airport and Grand Forks 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 Portimão Airport and Grand Forks 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 Portimão Airport (PRM):

• Because of Portimão Airport's relatively low elevation of 5 feet, planes can take off or land at Portimão 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.
• Portimão Airport (PRM) currently has only 1 runway.
• The closest airport to Portimão Airport (PRM) is Faro International Airport (FAO), which is located 35 miles (56 kilometers) ESE of PRM.
• The furthest airport from Portimão Airport (PRM) is Dargaville Aerodrome (DGR), which is nearly antipodal to Portimão Airport (meaning Portimão Airport is almost on the exact opposite side of the Earth from Dargaville Aerodrome), and is located 12,276 miles (19,756 kilometers) away in Dargaville, New Zealand.
• In addition to being known as "Portimão Airport", another name for PRM is "Aeródromo Municipal de Portimão".

Facts about Grand Forks Air Force Base (RDR):

• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• On 18 February 1957, the 478th Fighter Group was activated at Grand Forks.
• In 1973, the 319th Bomb Wing acquired the AGM-69 Short Range Attack Missile, replacing the older AGM-28 Hound Dog air-to-ground missile aboard its B-52H aircraft.
• The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
• Following the departure of the last B-1B aircraft in 1994, the base transferred to the new Air Mobility Command and the 319th Bomb Wing was redesignated as the 319th Air Refueling Wing.
• The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
• Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.