The flight distance from Eleftherios Venizelos International Airport (ATH) in Athens, Greece to Chiang Rai International Airport (CEI) in Chiang Rai, Thailand is 7,456 kilometers (4,633 miles / 4,026 nautical miles). The estimated flight time for this route is approximately 10h, flying east at a heading of 82°.

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 Greece with Thailand. It is an intercontinental flight between Europe and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 23:22 in Athens, it's 04:22 in Chiang Rai. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Chiang Rai (CEI) to Athens (ATH) follows a heading of 304° (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 Eleftherios Venizelos International Airport (ATH) and Chiang Rai International Airport (CEI) detail pages, or use our flight duration calculator to compare other routes.