Nonstop flight route between Grand Forks, North Dakota, United States and Tefé, Amazonas, Brazil:

About this route:

A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Tefé Airport (TFF), Tefé, Amazonas, Brazil would travel a Great Circle distance of 4,059 miles (or 6,532 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 Grand Forks Air Force Base and Tefé 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 Grand Forks Air Force Base and Tefé 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 Grand Forks Air Force Base (RDR):

• On 3 September 1974, the SAFSCOM Site Activation Team was relieved by the U.S.
• Grand Forks Air Force Base was established on 1 December 1955, with construction beginning in the fall of that year.
• SAGE operations were extremely expansive and GFADS was inactivated on 1 December 1963, when it was merged with the Minot Air Defense Sector at Minot AFB to the west.
• Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.
• 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.
• 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.
• During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
• On 18 February 1957, the 478th Fighter Group was activated at Grand Forks.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• On 1 September 1958, the Strategic Air Command established the 4133d Strategic Wing at Grand Forks as part of its plan to disperse its B-52 heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.

Facts about Tefé Airport (TFF):

• Because of Tefé Airport's relatively low elevation of 184 feet, planes can take off or land at Tefé 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 closest airport to Tefé Airport (TFF) is Coari Airport (CIZ), which is located 122 miles (196 kilometers) ESE of TFF.
• Tefé Airport (TFF) currently has only 1 runway.
• In addition to being known as "Tefé Airport", another name for TFF is "Aeroporto de Tefé".
• The airport is located 5 km from downtown Tefé.
• Tefé Airport is the airport serving Tefé, Brazil.
• Tefé Airport handled 79,624 passengers last year.
• The furthest airport from Tefé Airport (TFF) is Long Lellang Airport (LGL), which is nearly antipodal to Tefé Airport (meaning Tefé Airport is almost on the exact opposite side of the Earth from Long Lellang Airport), and is located 12,428 miles (20,001 kilometers) away in Long Lellang, Sarawak, Malaysia.