Nonstop flight route between Great Falls, Montana, United States and Challis, Idaho, United States:

About this route:

A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Challis Airport (CHL), Challis, Idaho, United States would travel a Great Circle distance of 252 miles (or 406 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 Malmstrom Air Force Base and Challis Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Malmstrom Air Force Base (GFA):

• On 23 December 1959, the Air Force Ballistic Missile Committee approved the selection of Malmstrom AFB to host the first Minuteman ICBM base.
• The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
• In 1957, under the control of the 801st Aircraft Control and Warning Squadron, the Malmstrom AFB radar station became operational with AN/FPS-20 search and AN/FPS-6 height-finder radars.
• Great Falls played a major aerial defense role in North American air defense mission.
• Aircraft shipments to the Soviet Union stopped in September 1945, when World War II ended, with approximately 8,000 aircraft having been processed in a 21-month period.
• In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
• Malmstrom AFB is one of three US Air Force Bases that maintains and operates the Minuteman III intercontinental ballistic missile.
• The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
• The 801st Radar Squadron was inactivated on 31 December 1969 due to budget reductions.

Facts about Challis Airport (CHL):

• Because of Challis Airport's high elevation of 5,072 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CHL. Combined with a high temperature, this could make CHL a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Challis Airport (CHL) is Pierrefonds Airport (ZSE), which is located 10,728 miles (17,265 kilometers) away in Saint-Pierre, Réunion.
• In addition to being known as "Challis Airport", another name for CHL is "LLJ".
• The closest airport to Challis Airport (CHL) is Lemhi County Airport (SMN), which is located 45 miles (72 kilometers) NNE of CHL.
• Challis Airport (CHL) currently has only 1 runway.