The flight distance from Incheon International Airport (ICN) in Seoul, South Korea to Sukhothai Airport (THS) in Sukhothai Airport, Thailand is 3,438 kilometers (2,136 miles / 1,856 nautical miles). The estimated flight time for this route is approximately 5h, flying west southwest at a heading of 236°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting South Korea with Thailand. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:14 in Seoul, it's 17:14 in Sukhothai Airport.

The return flight from Sukhothai Airport (THS) to Seoul (ICN) follows a heading of 44° (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 Sukhothai Airport (THS) detail pages, or use our flight duration calculator to compare other routes.