Chiang Mai to Koh Samui

1 ways to travelfastest 2h 20mfly from €102
Photo: Lera Ginzburg / Unsplash

When is it cheapest to fly?

Aug: from €148 — show this month's calendar €148 AugSep: from €109 — show this month's calendar €109 SepOct: from €117 — show this month's calendar €117 OctNov: from €117 — show this month's calendar €117 NovDec: from €124 — show this month's calendar €124 DecJan: from €115 — show this month's calendar €115 JanFeb: from €134 — show this month's calendar €134 FebMar: from €102 — show this month's calendar €102 Mar

How the cheapest fare moved

Aug 30: €114 €114 Aug 26 Aug 30 low €109 · high €151

Departure-day prices · June 2022 Chiang Mai → Koh Samui

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Return-day prices · June 2022 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: Mar — fares from €102 and ~30°C daytime.

Flights from Chiang Mai to Koh Samui start around €102 (typically 1 stop). Range seen recently: €102–117, based on 6 fares found by travellers.

Fly (from €102)
2h 20mduration
€102–117recent fares
Book
Cheapest cached fares Chiang Mai → Koh Samui; typically 1 stop (e.g. VZ). · Based on 6 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.

Oct 16 – Oct 21 Bangkok Airways · 1 stop · 2h 30m €237 Book
Sep 14 – Sep 27 Thai Vietjet Air · 1 stop · 3h 05m €280 Book
Nov 24 – Nov 26 Thai Vietjet Air · 1 stop · 2h 30m €286 Book
Dec 25 – Jan 8 Nok Air · 1 stop · 2h 30m €441 Book

Weather in Koh Samui

Mon 🌦️ 33° 27° 💧51%
Tue 🌦️ 32° 26° 💧55%
Wed 🌧️ 32° 26° 💧86%
Thu 🌦️ 31° 25° 💧74%
Fri 🌦️ 31° 26° 💧65%
Sat 🌦️ 29° 27° 💧76%
Sun 🌦️ 31° 26° 💧65%

Where to stay in Koh Samui

3★+ hotels from €25/night (39 hotels sampled, ~3 weeks out).

COSI Samui Chaweng Beach hotel · Koh Samui
from €25/night★ 3
See availability
Escape Beach Resort hotel · Koh Samui
from €30/night★ 3
See availability
Villas Residence By Weekender Resort hotel · Koh Samui
from €43/night★ 3
See availability

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.

from €67
Cooking Class by Samui Native Instructor Geng and O Family★ 5.0 (319)
from €558
3-Day PADI Open Water Diver Course, Koh Samui★ 5.0 (53)
from €53
Meditation & Yoga with Era with Smoothie Bowl & Swim by the Pool★ 5.0 (45)
from €47
Sunrise Stand Up Paddleboard (SUP) Tour in Koh Samui★ 5.0 (33)
from €186
Introductory dive for non-certified divers★ 5.0 (28)
from €198
X Quad Samui Premium ATV Tour (Driver+Passenger) with lunch★ 5.0 (22)

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

eSIM for Koh SamuiData from the moment you land — no roaming bills. Rent a car in Koh SamuiCompare local and international rental desks. Airport transferFixed-price pickup waiting at arrivals. Travel insuranceMedical + luggage cover from a few €/day.

Popular from Chiang Mai

Cheapest destinations travellers searched recently — refreshed daily.

from €55
Chiang Mai Bangkok
from €94
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from €99
Chiang Mai Phuket
from €109
Chiang Mai Udon Thani
from €148
Chiang Mai Pattaya
from €159
Chiang Mai Krabi
from €183
Chiang Mai Hanoi
from €201
Chiang Mai Luang Prabang
from €208
Chiang Mai Ho Chi Minh City
from €216
Chiang Mai Hong Kong
from €225
Chiang Mai Nha Trang
from €226
Chiang Mai Shanghai
from €232
Chiang Mai Seoul
from €255
Chiang Mai Kuala Lumpur
from €261
Chiang Mai Trat

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 2026-08-30. Some links earn Stayonomy a commission at no cost to you.