1 hour by plane from Bangkok, Chiang Mai, Pattaya and Phuket or internationally from Singapore and Hong Kong with Bangkok airways.

Silk Air also fly in from Singapore direct to Koh Samui.

A number of options are also possible via Kuala Lumpur.

Alternatively you can arrive by ferry into Nathon on Koh Samui from the main port of Donsak on the mainland (90 minute journey).

Boat crossings are also available from the neighbouring islands of Koh Phan Ghan and Koh Tao.