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Cheapest cached fares Chiang Rai → Koh Samui; typically 1 stop (e.g. FD). · Based on 4 fares found by travellers in the last 48h
Best value: Jan — fares from €131 and ~28°C daytime.
Flights from Chiang Rai to Koh Samui start around €152 (typically 1 stop). Range seen recently: €152–156, based on 4 fares found by travellers.
In Aug, Koh Samui typically sees ~32°C daytime highs and 21 rainy days.
3★+ hotels from €20/night (38 hotels sampled, ~3 weeks out).
Top-rated tours and tickets from €48 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
Ko Samui (เกาะสมุย), often called just Samui (สมุย) is an island of great natural beauty and variety in the Gulf of Thailand. The palm-fringed shoreline and coconut and fruit cultivation of the coastal lowlands rise to a central granite massif, the slopes of which are cloaked in virgin rainforest.
Guide content from Wikivoyage contributors (CC BY-SA).
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Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-11-10. Some links earn Stayonomy a commission at no cost to you.