Nonstop flight route between Rapid City, South Dakota, United States and Port Williams, Kodiak Island Borough, Alaska, United States:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and Port Williams Seaplane Base (KPR), Port Williams, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 2,290 miles (or 3,685 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 Ellsworth Air Force Base and Port Williams Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Ellsworth Air Force Base (RCA):

• The closest airport to Ellsworth Air Force Base (RCA) is Rapid City Regional Airport (RAP), which is located only 7 miles (11 kilometers) S of RCA.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• When operations resumed in 1947 the base was a new United States Air Force asset.
• The furthest airport from Ellsworth Air Force Base (RCA) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,026 kilometers) away in Rodrigues Island, Mauritius.
• Rapid City AAF was assigned to the 17th Bombardment Training Wing, II Bomber Command.
• After the Army closed their facilities, the military housing at the Nike Integrated Fire Control sites was transferred to control of Ellsworth, and was used as Air Force military family housing until about 1990.
• Rapid City AAB was reactivated on 11 October 1945 and was assigned to Continental Air Force.
• An AN/MPS-14 height-finder radar was added in 1956.

Facts about Port Williams Seaplane Base (KPR):

• Port Williams Seaplane Base (KPR) currently has only 1 runway.
• Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.
• The closest airport to Port Williams Seaplane Base (KPR) is Kitoi Bay Seaplane Base (KKB), which is located 22 miles (35 kilometers) SSE of KPR.
• Because of Port Williams Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Williams 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.
• The furthest airport from Port Williams Seaplane Base (KPR) is Port Elizabeth International Airport (PLZ), which is located 10,742 miles (17,287 kilometers) away in Port Elizabeth, South Africa.