Nonstop flight route between Jacksonville, Illinois, United States and San Juan Island, Washington, United States:

About this route:

A direct, nonstop flight between Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX), Jacksonville, Illinois, United States and Roche Harbor Seaplane Base (RCE), San Juan Island, Washington, United States would travel a Great Circle distance of 2,502 miles (or 4,027 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 and Roche Harbor Seaplane 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 and Roche Harbor Seaplane 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX):

• The largest airliner scheduled to Imeson was the McDonnell Douglas DC-8-61 flown by Delta Air Lines.
• The closest airport to Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Jacksonville International Airport (JAX), which is located only 6 miles (9 kilometers) NNW of IJX.
• In the fall of 1945, jurisdiction of Jacksonville AAF was transferred to Air Technical Service Command, whose mission was the transfer of any useful military equipment to other bases around the country.
• The furthest airport from Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Shark Bay Airport (MJK), which is located 11,460 miles (18,442 kilometers) away in Monkey Mia, Western Australia, Australia.
• Because of Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1's relatively low elevation of 20 feet, planes can take off or land at Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 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.
• As part of the buildup of forces prior to the United States entry into World War II, the Army Air Corps leased Imeson Field from the City of Jacksonville on 6 February 1941.

Facts about Roche Harbor Seaplane Base (RCE):

• 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.
• In addition to being known as "Roche Harbor Seaplane Base", another name for RCE is "W39".
• 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.
• 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.
• Roche Harbor Seaplane Base (RCE) has 2 runways.