Nonstop flight route between Phrae, Thailand and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between Phrae Airport (PRH), Phrae, Thailand and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 7,743 miles (or 12,460 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 Phrae 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 Phrae 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 Phrae Airport (PRH):

• Because of Phrae Airport's relatively low elevation of 0 feet, planes can take off or land at Phrae 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 Phrae Airport (PRH) is Lampang Airport (LPT), which is located 44 miles (71 kilometers) WNW of PRH.
• The furthest airport from Phrae Airport (PRH) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is nearly antipodal to Phrae Airport (meaning Phrae Airport is almost on the exact opposite side of the Earth from Capitán FAP Renán Elías Olivera International Airport), and is located 12,050 miles (19,393 kilometers) away in Pisco, Peru.

Facts about Grand Forks Air Force Base (RDR):

• In October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.
• Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.
• On 3 November 1967, the Department of Defense revealed that GFAFB was one of 10 initial locations to host a Sentinel Anti-Ballistic Missile site.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• 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.
• In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
• Grand Forks Air Force Base was established on 1 December 1955, with construction beginning in the fall of that year.
• On 1 February 1993, ACC dropped the 319th Bomb Wing's primary nuclear mission and gave the wing the primary mission of B-1B conventional bombardment operations.
• 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.
• Grand Forks Air Force Base is a United States Air Force installation in northeastern North Dakota, located north of Emerado and 16 miles west of Grand Forks.