The flight distance from Incheon International Airport (ICN) in Seoul, South Korea to Libertador Gral D Jose De San Martin Airport (PSS) in Posadas, Argentina is 18,872 kilometers (11,726 miles / 10,190 nautical miles). The estimated flight time for this route is approximately 23h, flying north northeast at a heading of 12°.

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

Time zone information: When it's 13:35 in Seoul, it's 01:35 in Posadas. With a 12-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 Posadas (PSS) to Seoul (ICN) follows a heading of 349° (north). 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 Libertador Gral D Jose De San Martin Airport (PSS) detail pages, or use our flight duration calculator to compare other routes.