Nonstop flight route between Portland, Oregon, United States and Seongnam, South Korea:

About this route:

A direct, nonstop flight between Portland International Airport (PDX), Portland, Oregon, United States and Seoul Air Base (SSN), Seongnam, South Korea would travel a Great Circle distance of 5,252 miles (or 8,452 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 Seoul 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 Seoul 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):

• In 1925 aviation proponents proposed an airport for Portland on Swan Island, northwest of downtown Portland on the Willamette River.
• In August 2005, the concourse connector was opened.
• 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.
• Swan Island Airport was officially named Portland Airport until the opening of the new airport.
• In 1948 the entire airport grounds were flooded during the Vanport Flood, forcing scheduled airline services to reroute to nearby Troutdale Airport.
• Portland Airport has five concourses as well as a business aviation terminal.
• 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 handled 1,502,956 passengers last year.
• Portland International Airport (PDX) has 3 runways.
• The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.

Facts about Seoul Air Base (SSN):

• The base is used as a VIP airfield by the President of South Korea and other VIPs and heads of state.
• Seoul Air Base (SSN) has 2 runways.
• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".
• The base is home to the ROKAF 15th Composite Wing.
• The furthest airport from Seoul Air Base (SSN) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Seoul Air Base (meaning Seoul Air Base is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,220 miles (19,665 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
• Because of Seoul Air Base's relatively low elevation of 92 feet, planes can take off or land at Seoul 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.
• The closest airport to Seoul Air Base (SSN) is Gimpo International Airport (GMP), which is located only 19 miles (31 kilometers) WNW of SSN.
• Seoul Air Base It is located in Seongnam city, right below Seoul.