The flight distance from Kansai International Airport (KIX) in Osaka, Japan to Samui Airport (USM) in Na Thon (Ko Samui Island), Thailand is 4,521 kilometers (2,809 miles / 2,441 nautical miles). The estimated flight time for this route is approximately 6h, flying west southwest at a heading of 241°.

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 Japan with Thailand. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 09:05 in Osaka, it's 07:05 in Na Thon (Ko Samui Island).

The return flight from Na Thon (Ko Samui Island) (USM) to Osaka (KIX) follows a heading of 47° (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 Kansai International Airport (KIX) and Samui Airport (USM) detail pages, or use our flight duration calculator to compare other routes.