The flight distance from Incheon International Airport (ICN) in Seoul, South Korea to Kosti Airport (KST) in Kosti, Sudan is 9,443 kilometers (5,867 miles / 5,099 nautical miles). The estimated flight time for this route is approximately 12h, flying west northwest at a heading of 283°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting South Korea with Sudan. It is an intercontinental flight between Asia and Africa. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 04:21 in Seoul, it's 21:21 in Kosti. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 1,266 feet between the two airports. Kosti Airport sits higher than Incheon International Airport.

The return flight from Kosti (KST) to Seoul (ICN) follows a heading of 53° (northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Incheon International Airport (ICN) and Kosti Airport (KST) detail pages, or use our flight duration calculator to compare other routes.