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

About this route:

A direct, nonstop flight between Portland-Troutdale Airport (TTD), Portland, Oregon, United States and Gimpo International Airport (GMP), Seoul, South Korea would travel a Great Circle distance of 5,267 miles (or 8,477 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-Troutdale Airport and Gimpo International Airport, 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-Troutdale Airport and Gimpo International Airport. 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-Troutdale Airport (TTD):

• The airport was purchased by the Port of Portland in 1942, serving as a reliever airport for nearby Portland International Airport until the 1950s.
• Because of Portland-Troutdale Airport's relatively low elevation of 39 feet, planes can take off or land at Portland-Troutdale 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.
• Operations at times may be limited or restricted as Portland International Airport take-off and approach paths cross directly above Troutdale Airport.
• The closest airport to Portland-Troutdale Airport (TTD) is Portland International Airport (PDX), which is located only 10 miles (16 kilometers) WNW of TTD.
• The furthest airport from Portland-Troutdale Airport (TTD) is Tôlanaro Airport (FTU), which is located 10,901 miles (17,543 kilometers) away in Tôlanaro, Madagascar.
• Portland-Troutdale Airport (TTD) currently has only 1 runway.

Facts about Gimpo International Airport (GMP):

• The closest airport to Gimpo International Airport (GMP) is Gimpo International Airport (SEL), which is located only 0 mile (0 kilometer) N of GMP.
• Captured KPAF Ilyushin Il-10, 21 September 1950
• Gimpo Airport primarily serves domestic and limited international flights to Japan, Taiwan, and China.
• Gimpo International Airport (GMP) has 2 runways.
• In 1958 Kimpo was designated as the international airport of the South Korean capital city and has grown into a much more significant airport that is capable of handling 226,000 flights a year.
• Gimpo International Airport handled 19,424,032 passengers last year.
• Because of Gimpo International Airport's relatively low elevation of 58 feet, planes can take off or land at Gimpo 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.
• Following the Inchon landings on 15 September 1950, the 2nd Battalion 5th Marines was ordered to seize Kimpo on 17 September.
• Following the Chinese Third Phase Campaign and the defeat of UN Forces at the 38th parallel, on 5 January 1951 General Ridgway ordered the evacuation of Seoul and the withdrawal of UN forces to a new defensive line along the 37th parallel.
• The furthest airport from Gimpo International Airport (GMP) is Villa Gesell Airport (VLG), which is nearly antipodal to Gimpo International Airport (meaning Gimpo International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,226 miles (19,676 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
• In addition to being known as "Gimpo International Airport", other names for GMP include "김포국제공항 金浦國際空港" and "Gimpo Gukje Gonghang Kimp'o Kukche Konghang".