Nonstop flight route between Keflavík (near Reykjavík), Iceland and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Keflavík International Airport (KEF), Keflavík (near Reykjavík), Iceland and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 3,197 miles (or 5,145 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 Keflavík International Airport and St. Louis Downtown 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 Keflavík International Airport and St. Louis Downtown 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 Keflavík International Airport (KEF):

• Keflavík Airport only handles international flights, domestic flights and flights to Greenland and the Faroe Islands are operated from Reykjavík's domestic airport.
• Keflavík International Airport (KEF) has 2 runways.
• Because of Keflavík International Airport's relatively low elevation of 171 feet, planes can take off or land at Keflavík 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.
• Although the population of Iceland is only about 300,000, there are scheduled flights to and from nine locations in the United States, four in Canada and 31 cities across Europe.
• In addition to being known as "Keflavík International Airport", another name for KEF is "Keflavíkurflugvöllur".
• The closest airport to Keflavík International Airport (KEF) is Reykjavík Airport (RKV), which is located 22 miles (36 kilometers) ENE of KEF.
• The furthest airport from Keflavík International Airport (KEF) is Ryan's Creek Aerodrome (SZS), which is located 11,188 miles (18,005 kilometers) away in Stewart Island, New Zealand.
• On 21 July 2013, a Russian Sukhoi Superjet 100 airliner, prototype aircraft 97005, made a belly landing during a test flight.
• With the re-construction of the military base at Keflavík during the 1950s, the air terminal found itself positioned in the middle of the base.

Facts about St. Louis Downtown Airport (CPS):

• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
• The airport opened in 1929 as Curtiss-Steinberg Airport.
• St. Louis Downtown Airport (CPS) has 3 runways.