Nonstop flight route between Den Helder, Netherlands and Coffman Cove, Alaska, United States:

About this route:

A direct, nonstop flight between De Kooy Airfield (DHR), Den Helder, Netherlands and Coffman Cove Seaplane Base (KCC), Coffman Cove, Alaska, United States would travel a Great Circle distance of 4,535 miles (or 7,298 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 De Kooy Airfield and Coffman Cove 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 De Kooy Airfield and Coffman Cove 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 De Kooy Airfield (DHR):

• Most movements on the De Kooy are made by helicopters, bringing workers to and from offshore oilrigs and naval helicopters such as the Westland Lynx or NH90 of the Royal Netherlands Navy.
• The furthest airport from De Kooy Airfield (DHR) is Chatham Islands (CHT), which is located 11,805 miles (18,998 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The oil fields in the North Sea will eventually be depleted and when that happens the airport would lose most of its helicopter movements and thus alternative markets are being looked at, such as business and holiday flights.
• De Kooy Airfield (DHR) currently has only 1 runway.
• The closest airport to De Kooy Airfield (DHR) is Amsterdam Airport Schiphol (AMS), which is located 43 miles (68 kilometers) S of DHR.
• Because of De Kooy Airfield's relatively low elevation of 4 feet, planes can take off or land at De Kooy Airfield 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 "De Kooy Airfield", other names for DHR include "Vliegveld De Kooy", "Den Helder Airport" and "Maritiem Vliegkamp De Kooy".

Facts about Coffman Cove Seaplane Base (KCC):

• The closest airport to Coffman Cove Seaplane Base (KCC) is North Whale Seaplane Base (WWP), which is located only 13 miles (21 kilometers) WNW of KCC.
• The furthest airport from Coffman Cove Seaplane Base (KCC) is Port Alfred Airport (AFD), which is located 10,609 miles (17,073 kilometers) away in Port Alfred, South Africa.
• Coffman Cove Seaplane Base (KCC) currently has only 1 runway.
• Because of Coffman Cove Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Coffman Cove 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.