The flight distance from Incheon International Airport (ICN) in Seoul, South Korea to Sines Airport (SIE) in Sines Airport, Portugal is 10,458 kilometers (6,498 miles / 5,647 nautical miles). The estimated flight time for this route is approximately 13h, flying northwest at a heading of 326°.

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 Portugal. It is an intercontinental flight between Asia and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:00 in Seoul, it's 10:00 in Sines Airport. With a 9-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Sines Airport (SIE) to Seoul (ICN) follows a heading of 34° (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 Sines Airport (SIE) detail pages, or use our flight duration calculator to compare other routes.