Nonstop flight route between Portland, Oregon, United States and Leiden, Netherlands:

About this route:

A direct, nonstop flight between Portland International Airport (PDX), Portland, Oregon, United States and Valkenburg Naval Air Base (LID), Leiden, Netherlands would travel a Great Circle distance of 4,988 miles (or 8,028 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 Portland International Airport and Valkenburg Naval Air 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 Portland International Airport and Valkenburg Naval Air 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 Portland International Airport (PDX):

• By 1935 it was becoming apparent to the Port of Portland that the Swan Island Airport was becoming obsolete.
• The early 1990s saw a food court and extension added to Concourse C, and the opening of the new Concourse D in 1994.
• The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
• Portland International Airport handled 1,502,956 passengers last year.
• Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland International 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 first international nonstop was Western's 720B to Vancouver in 1967.
• The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
• Portland International Airport (PDX) has 3 runways.

Facts about Valkenburg Naval Air Base (LID):

• The furthest airport from Valkenburg Naval Air Base (LID) is Chatham Islands (CHT), which is located 11,858 miles (19,084 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Valkenburg Naval Air Base", another name for LID is "Vliegkamp Valkenburg".
• The closest airport to Valkenburg Naval Air Base (LID) is Rotterdam The Hague Airport (RTM), which is located only 15 miles (23 kilometers) S of LID.
• Valkenburg Naval Air Base (LID) has 2 runways.
• In March of 2014 Valkenburg was used as the home base for both police and military helicopters providing security during the 2014 Nuclear Security Summit.
• Because of Valkenburg Naval Air Base's relatively low elevation of 0 feet, planes can take off or land at Valkenburg Naval Air 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.