Nonstop flight route between San Juan Island, Washington, United States and Great Falls, Montana, United States:

About this route:

A direct, nonstop flight between Roche Harbor Seaplane Base (RCE), San Juan Island, Washington, United States and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 558 miles (or 897 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 Roche Harbor Seaplane Base and Malmstrom 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 Roche Harbor Seaplane Base (RCE):

• Roche Harbor Seaplane Base (RCE) has 2 runways.
• The furthest airport from Roche Harbor Seaplane Base (RCE) is Tôlanaro Airport (FTU), which is located 10,722 miles (17,256 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Roche Harbor Seaplane Base (RCE) is Friday Harbor Seaplane Base (FBS), which is located only 8 miles (14 kilometers) SE of RCE.
• In addition to being known as "Roche Harbor Seaplane Base", another name for RCE is "W39".
• Because of Roche Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Roche Harbor Seaplane Base 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.

Facts about Malmstrom Air Force Base (GFA):

• MATS reopened the C-54 Flight Training School as the 1272 Medium Transition Training Unit in May 1950, one month before the Korean War began.
• Great Falls was reassigned to the Central Air Defense Force at Richards-Gebaur Air Force Base in 1953.
• Construction of the wing's first launch facility began in March 1961 and was completed in December.
• In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
• This included one of the greatest technology transfers in the history of the world.
• 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.
• 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.
• Z-147 was completely replaced by a new ARSR-4 JSS site on Bootlegger Ridge, about 14 miles northeast of Great Falls AFB.