Nonstop flight route between Seoul, South Korea and Willow Grove, Pennsylvania, United States:

About this route:

A direct, nonstop flight between Gimpo International Airport (SEL), Seoul, South Korea and NAS JRB Willow Grove (NXX), Willow Grove, Pennsylvania, United States would travel a Great Circle distance of 6,887 miles (or 11,084 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 NAS JRB Willow Grove, 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 NAS JRB Willow Grove. 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 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.
• 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.
• North Korean forces attacked South Korea on 25 June 1950 starting the Korean War.
• 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".
• 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.
• On 29 November 2003, scheduled services between Gimpo and Tokyo International Airport in Tokyo, Japan began.
• Gimpo International Airport (SEL) has 2 runways.

Facts about NAS JRB Willow Grove (NXX):

• Flight activity began here in 1926 when Harold Frederick Pitcairn constructed a hangar and a grass airstrip in Horsham, Pennsylvania.
• NAS JRB Willow Grove (NXX) currently has only 1 runway.
• Currently, the 111th Fighter Wing, operating the A-10 Thunderbolt II, has lost all its aircraft to other ANG Squadrons under BRAC.
• The furthest airport from NAS JRB Willow Grove (NXX) is Margaret River Airport (MGV), which is located 11,726 miles (18,871 kilometers) away in Margaret River, Western Australia, Australia.
• Because of NAS JRB Willow Grove's relatively low elevation of 335 feet, planes can take off or land at NAS JRB Willow Grove 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 NAS JRB Willow Grove (NXX) is Wings Field (BBX), which is located only 8 miles (12 kilometers) SW of NXX.
• Naval Air Station Joint Reserve Base Willow Grove or NASJRB Willow Grove was a Naval Air Station owned by the U.S.