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

About this route:

A direct, nonstop flight between Gimpo International Airport (SEL), Seoul, South Korea and Portland-Troutdale Airport (TTD), Portland, Oregon, United States 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 Gimpo International Airport and Portland-Troutdale 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 Gimpo International Airport and Portland-Troutdale 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 Gimpo International Airport (SEL):

• The Aviation and Railway Accident Investigation Board has its FDR/CVR Analysis and Wreckage Laboratory on the property of Gimpo International Airport.
• Gimpo International Airport handled 19,424,032 passengers last year.
• Gimpo International Airport (SEL) has 2 runways.
• The closest airport to Gimpo International Airport (SEL) is Gimpo International Airport (GMP), which is located only 0 mile (0 kilometer) N of SEL.
• On 21 September 1953 North Korean pilot No Kum-Sok defected in his MiG-15 landing at Kimpo.
• In addition to being known as "Gimpo International Airport", other names for SEL include "김포국제공항 金浦國際空港", "Gimpo Gukje Gonghang Kimp'o Kukche Konghang", "GMP" and "RKSS".
• The furthest airport from Gimpo International Airport (SEL) 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.
• 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.
• North Korean forces attacked South Korea on 25 June 1950 starting the Korean War.
• The airfield was originally constructed in 1939–1942 during the Japanese Imperial period.
• 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.
• UN Forces resumed the offensive again in late January 1951 and launched Operation Thunderbolt on 25 January with the aim of pushing Chinese and North Korean forces back north of the Han River.

Facts about Portland-Troutdale Airport (TTD):

• Portland-Troutdale Airport (TTD) currently has only 1 runway.
• The airport was purchased by the Port of Portland in 1942, serving as a reliever airport for nearby Portland International Airport until the 1950s.
• 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.
• 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.