Nonstop flight route between Seoul, South Korea and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Gimpo International Airport (SEL), Seoul, South Korea and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 5,580 miles (or 8,980 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 Helena Regional 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 Helena Regional 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):

• 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.
• 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.
• Kimpo played a major role during the Korean War, the USAF designated the airfield as Kimpo Air Base or K-14.
• 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.
• 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".
• 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.
• Gimpo International Airport handled 19,424,032 passengers last year.
• On 29 November 2003, scheduled services between Gimpo and Tokyo International Airport in Tokyo, Japan began.
• 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.
• Captured KPAF Ilyushin Il-10, 21 September 1950
• MiG-15, September 1953

Facts about Helena Regional Airport (HLN):

• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
• Helena Regional Airport (HLN) has 3 runways.