The flight distance from Chiang Mai International Airport (CNX) in Chiang Mai, Thailand to Helsinki Vantaa Airport (HEL) in Helsinki, Finland is 7,325 kilometers (4,551 miles / 3,955 nautical miles). The estimated flight time for this route is approximately 10h, flying north northwest at a heading of 329°.

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

Time zone information: When it's 04:29 in Chiang Mai, it's 23:29 in Helsinki. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Helsinki (HEL) to Chiang Mai (CNX) follows a heading of 94° (east). 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 Mai International Airport (CNX) and Helsinki Vantaa Airport (HEL) detail pages, or use our flight duration calculator to compare other routes.