Nonstop flight route between Incheon (near Seoul), South Korea and San Francisco, California, United States:

About this route:

A direct, nonstop flight between Incheon International Airport (ICN), Incheon (near Seoul), South Korea and San Francisco International Airport (SFO), San Francisco, California, United States would travel a Great Circle distance of 5,646 miles (or 9,086 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 Incheon International Airport and San Francisco 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 Incheon International Airport and San Francisco 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 Incheon International Airport (ICN):

• Located 48 km west of Seoul, the capital and the largest city of South Korea, Incheon International Airport is the main hub for Korean Air, Asiana Airlines, Jeju Air, and Polar Air Cargo.
• Incheon International Airport (ICN) has 3 runways.
• In addition to being known as "Incheon International Airport", other names for ICN include "인천국제공항 仁川國際空港" and "Incheon Gukje Gonghang Inch'ŏn Kukche Konghang".
• The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.
• The airport opened for business in early 2001 to replace the older Gimpo International Airport, which now serves mostly domestic destinations plus shuttle flights to alternate airports in China, Japan, and Taiwan.
• The Incheon International Airport Railroad connects Incheon International Airport to Seoul Station in downtown Seoul.
• The main passenger terminal is the largest airport terminal in area in South Korea.
• Plans to invest ₩4 trillion by 2017 to expand Incheon International Airport.
• The airport was originally planned to be built in three phases, incrementally increasing airport capacity as the demand grew.
• The furthest airport from Incheon International Airport (ICN) is Villa Gesell Airport (VLG), which is nearly antipodal to Incheon International Airport (meaning Incheon International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,246 miles (19,707 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
• Incheon International Airport is the largest airport in South Korea, the primary airport serving the Seoul National Capital Area, and one of the largest and busiest airports in the world.
• Because of Incheon International Airport's relatively low elevation of 23 feet, planes can take off or land at Incheon 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.
• Incheon International Airport handled 41,482,828 passengers last year.

Facts about San Francisco International Airport (SFO):

• The closest airport to San Francisco International Airport (SFO) is Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), which is located only 10 miles (16 kilometers) SW of SFO.
• SFO is owned and policed by the City and County of San Francisco, but is located in and entirely surrounded by adjacent San Mateo County.
• SFO was also one of the first U.S.
• San Francisco International Airport (SFO) has 4 runways.
• The furthest airport from San Francisco International Airport (SFO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,290 kilometers) away in Tôlanaro, Madagascar.
• San Francisco International Airport is an international airport located 13 miles south of downtown San Francisco, California, near Millbrae and San Bruno in unincorporated San Mateo County.
• The first international nonstops were ANA/BCPA DC-4s to Vancouver in 1946-47.
• Because of San Francisco International Airport's relatively low elevation of 13 feet, planes can take off or land at San Francisco 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.
• San Francisco International Airport handled 44,477,209 passengers last year.
• All SkyTeam, Oneworld and non-aligned international carriers operate from Boarding Area A.
• SFO experiences delays in overcast weather when only two of the airport's four runways can be used at a time because the centerlines of the parallel runways are only 750 feet apart.