Chiang Mai to Koh Samui

1 ways to travelfastest 2h 30mfly from €109
Photo: Lera Ginzburg / Unsplash

How the cheapest fare moved

Aug 20: €127 €127 Aug 15 Aug 20 low €119 · high €161

Departure-day prices · November 2023 Chiang Mai → Koh Samui

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Return-day prices · November 2023 Koh Samui → Chiang Mai

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Best time to visit Koh Samui — climate

Jan: ~28°C daytime, 16 rainy days 28° JanFeb: ~29°C daytime, 15 rainy days 29° FebMar: ~30°C daytime, 15 rainy days 30° MarApr: ~31°C daytime, 18 rainy days 31° AprMay: ~30°C daytime, 25 rainy days 30° MayJun: ~31°C daytime, 19 rainy days 31° JunJul: ~33°C daytime, 13 rainy days 33° JulAug: ~31°C daytime, 21 rainy days 31° AugSep: ~31°C daytime, 20 rainy days 31° SepOct: ~30°C daytime, 29 rainy days 30° OctNov: ~29°C daytime, 21 rainy days 29° NovDec: ~29°C daytime, 15 rainy days 29° Dec

Best value: Nov — fares from €109 and ~29°C daytime.

Flights from Chiang Mai to Koh Samui start around €109 (typically 1 stop). Range seen recently: €109–119, based on 7 fares found by travellers.

Fly (from €109)
2h 30mduration
€109–119recent fares
Book
Cheapest cached fares Chiang Mai → Koh Samui; typically 1 stop (e.g. VZ). · Based on 7 fares found by travellers in the last 48h

Cheapest round trips to Koh Samui

Fares found by travellers in the last 48 hours — refreshed daily.

Mar 10 – Mar 22 Thai Vietjet Air · 1 stop · 2h 30m €221 Book
Nov 10 – Nov 17 Bangkok Airways · 1 stop · 2h 35m €227 Book
Feb 18 – Feb 22 Bangkok Airways · 1 stop · 2h 35m €297 Book

Weather in Koh Samui

Fri 🌦️ 30° 27° 💧67%
Sat ⛈️ 32° 26° 💧61%
Sun 🌧️ 31° 26° 💧84%
Mon 🌧️ 30° 26° 💧76%
Tue 🌦️ 29° 26° 💧59%
Wed 🌦️ 30° 25° 💧35%
Thu 🌦️ 30° 25° 💧57%

In Nov, Koh Samui typically sees ~28°C daytime highs and 25 rainy days.

Where to stay in Koh Samui

3★+ hotels from €29/night (39 hotels sampled, ~3 weeks out).

COSI Samui Chaweng Beach hotel · Koh Samui
from €29/night★ 3
Escape Beach Resort hotel · Koh Samui
from €31/night★ 3
Montien House Chaweng Beach Resort hotel · Koh Samui
from €35/night★ 3

Good to know

Time differenceSame time zone
Time in the air2h 30m

Things to do in Koh Samui

Top-rated tours and tickets from €47 — book ahead for the popular ones.

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Koh Samui

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.

Read the full Koh Samui guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

Popular from Chiang Mai

Cheapest destinations travellers searched recently — refreshed daily.

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 2026-08-21. Some links earn Stayonomy a commission at no cost to you.