The flight distance from Incheon International Airport (ICN) in Seoul, South Korea to Thompson Falls Airport (THM) in Thompson Falls, United States is 8,751 kilometers (5,438 miles / 4,725 nautical miles). The estimated flight time for this route is approximately 11h, flying northeast at a heading of 37°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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

Time zone information: When it's 20:44 in Seoul, it's 04:44 in Thompson Falls. With a 16-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 2,444 feet between the two airports. Thompson Falls Airport sits higher than Incheon International Airport.

The return flight from Thompson Falls (THM) to Seoul (ICN) follows a heading of 315° (northwest). 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 Thompson Falls Airport (THM) detail pages, or use our flight duration calculator to compare other routes.