The flight distance from Chiang Rai International Airport (CEI) in Chiang Rai, Thailand to Incheon International Airport (ICN) in Seoul, South Korea is 3,222 kilometers (2,002 miles / 1,740 nautical miles). The estimated flight time for this route is approximately 5h, flying northeast at a heading of 47°.

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

Time zone information: When it's 10:32 in Chiang Rai, it's 12:32 in Seoul.

There is a significant elevation difference of 1,257 feet between the two airports. Incheon International Airport sits lower than Chiang Rai International Airport.

The return flight from Seoul (ICN) to Chiang Rai (CEI) follows a heading of 240° (west southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Chiang Rai International Airport (CEI) and Incheon International Airport (ICN) detail pages, or use our flight duration calculator to compare other routes.