Nonstop flight route between Santa Rosa, California, United States and Den Helder, Netherlands:

About this route:

A direct, nonstop flight between Charles M. Schulz–Sonoma County Airport (STS), Santa Rosa, California, United States and De Kooy Airfield (DHR), Den Helder, Netherlands would travel a Great Circle distance of 5,385 miles (or 8,666 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 Charles M. Schulz–Sonoma County Airport and De Kooy Airfield, 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 Charles M. Schulz–Sonoma County Airport and De Kooy Airfield. 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 Charles M. Schulz–Sonoma County Airport (STS):

• Because of Charles M. Schulz–Sonoma County Airport's relatively low elevation of 125 feet, planes can take off or land at Charles M. Schulz–Sonoma County Airport 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 closest airport to Charles M. Schulz–Sonoma County Airport (STS) is Marin County Airport (NOT), which is located 29 miles (46 kilometers) SSE of STS.
• Service to Las Vegas was stopped June 3, 2012.
• The furthest airport from Charles M. Schulz–Sonoma County Airport (STS) is Tôlanaro Airport (FTU), which is located 11,331 miles (18,235 kilometers) away in Tôlanaro, Madagascar.
• Charles M. Schulz–Sonoma County Airport (STS) has 2 runways.
• Opened in June 1942 and known as Santa Rosa Army Air Field, the airfield was assigned to Fourth Air Force as a group and replacement training airfield.
• The 478th Fighter Group was permanently assigned to Santa Rosa in December 1943 and began training replacement pilots, who were sent to combat units overseas after graduation.
• All Alaska Airlines flights from the airport are operated with the 76-seat Bombardier Q400 propjet, which is the largest and fastest member of the DHC-8 Dash 8 family of regional turboprops.
• On average, the base pumps about 300,000 US gallons of retardant a year.
• In addition to being known as "Charles M. Schulz–Sonoma County Airport", another name for STS is "Santa Rosa Army Airfield".

Facts about De Kooy Airfield (DHR):

• The closest airport to De Kooy Airfield (DHR) is Amsterdam Airport Schiphol (AMS), which is located 43 miles (68 kilometers) S of DHR.
• There are currently no scheduled services to and from Den Helder.
• De Kooy Airfield (DHR) currently has only 1 runway.
• 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.
• 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".
• 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.
• 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.