Nonstop flight route between Lansdowne House, Ontario, Canada and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between Lansdowne House Airport (YLH), Lansdowne House, Ontario, Canada and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 511 miles (or 822 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 relatively short distance between Lansdowne House Airport and Grand Forks Air Force Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Lansdowne House Airport (YLH):

• The closest airport to Lansdowne House Airport (YLH) is Fort Hope Airport (YFH), which is located 44 miles (70 kilometers) S of YLH.
• Lansdowne House Airport (YLH) currently has only 1 runway.
• Because of Lansdowne House Airport's relatively low elevation of 834 feet, planes can take off or land at Lansdowne House 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 furthest airport from Lansdowne House Airport (YLH) is Margaret River Airport (MGV), which is located 10,735 miles (17,277 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Grand Forks Air Force Base (RDR):

• 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 was established on 1 December 1955, with construction beginning in the fall of that year.
• The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
• 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.
• 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.
• 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.
• 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 October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.