Nonstop flight route between Incheon (near Seoul), South Korea and Rockford, Illinois, United States:

About this route:

A direct, nonstop flight between Incheon International Airport (ICN), Incheon (near Seoul), South Korea and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 6,496 miles (or 10,454 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 Chicago Rockford 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 Chicago Rockford 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):

• 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.
• 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".
• Incheon International Airport handled 41,482,828 passengers last year.
• To further upgrade service, Incheon and major Korean logistics firm Hanjin Corporation agreed on 10 January 2008 to build a nine-story hospital near the airport.
• Incheon International Airport (ICN) has 3 runways.
• Estimated to be completed in 2020, this is the final and the ultimate construction stage.
• 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.
• The airport holds an unbreakable record of being ranked the Best Airport Worldwide for 7 consecutive years by the Airports Council International 's Airport Service Quality award from year 2005 to 2011, and was also rated the world's best among airports of its size and region in year 2012 due to the institution's decision to discontinue the Best Airport Worldwide category.
• 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.
• There are currently over 90 airlines serving ICN.
• The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.

Facts about Chicago Rockford International Airport (RFD):

• The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
• RFD has two cargo aprons in use.
• The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
• RFD was once the company headquarters for Ryan International Airlines, staging many of its aircraft at the airport for charter hire.
• In an effort to capitalize on the airport's location from downtown Chicago and about 30 miles from the outermost Chicago suburbs), its name was changed to the Northwest Chicagoland Regional Airport at Rockford in the early 2000s.
• Chicago Rockford International Airport (RFD) has 2 runways.
• Several airlines have previously served the airport including United Express, Hooters Air, Frontier, Midwest Connect, Midway Connection, Trans Meridian, American Eagle, TWA, Ozark, McClain, Direct Air, Northwest Airlink, etc.
• The current terminal was built in 1987 in an effort to expand airline service in Rockford, but the common use of bus service to O'Hare International Airport kept most airlines away from Rockford.
• Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford 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.