Hong Kong to Koh Samui

1 ways to travelfastest 3h 50mfly from €157
Photo: Lera Ginzburg / Unsplash

When is it cheapest to fly?

Sep: from €198 — show this month's calendar €198 SepOct: from €158 — show this month's calendar €158 OctNov: from €157 — show this month's calendar €157 NovDec: from €173 — show this month's calendar €173 DecJan: from €176 — show this month's calendar €176 JanFeb: from €238 — show this month's calendar €238 FebJul: from €197 — show this month's calendar €197 Jul

How the cheapest fare moved

Sep 15: €158 €158 Sep 8 Sep 15 low €157 · high €202

Departure-day prices · September 2022 Hong Kong → Koh Samui

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Return-day prices · September 2022 Koh Samui → Hong Kong

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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 €157 and ~29°C daytime.

Flights from Hong Kong to Koh Samui start around €157 (typically 1 stop). Range seen recently: €157–170, based on 19 fares found by travellers.

Fly (from €157)
3h 50mduration
€157–170recent fares
Book
Cheapest cached fares Hong Kong → Koh Samui; typically 1 stop (e.g. SL). · Based on 19 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.

Nov 11 – Nov 19 Thai Lion Air · 1 stop · 4h 20m €314 Book
Oct 19 – Oct 23 HK Express · 1 stop · 4h 05m €329 Book
Oct 20 – Oct 27 HK Express · 1 stop · 4h 05m €330 Book
Oct 9 – Oct 20 HK Express · 1 stop · 4h 30m €333 Book
Nov 1 – Nov 4 HK Express · 1 stop · 4h 15m €334 Book
Nov 16 – Nov 22 HK Express · 1 stop · 4h 15m €340 Book
Nov 5 – Nov 16 HK Express · 1 stop · 4h 15m €346 Book
Nov 9 – Nov 20 Thai Lion Air · 1 stop · 4h 00m €349 Book

Weather in Koh Samui

Tue ⛈️ 31° 26° 💧80%
Wed 🌧️ 30° 26° 💧80%
Thu ⛈️ 29° 25° 💧82%
Fri ⛈️ 29° 25° 💧97%
Sat ⛈️ 28° 25° 💧95%
Sun ⛈️ 29° 25° 💧91%
Mon ⛈️ 29° 24° 💧82%

In Sep, Koh Samui typically sees ~29°C daytime highs and 20 rainy days.

Good to know

Time difference-1h
Time in the air4h 00m

Things to do in Koh Samui

Top-rated tours and tickets from €21 — book ahead for the popular ones.

from €560
3-Day PADI Open Water Diver Course, Koh Samui★ 5.0 (54)
from €54
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 €187
Introductory dive for non-certified divers★ 5.0 (28)
from €198
X Quad Samui Premium ATV Tour (Driver+Passenger) with lunch★ 5.0 (22)
from €21
Koh Samui Chaweng Beach Nightlife Walking Tour★ 5.0 (20)

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.

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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 2026-09-15. Some links earn Stayonomy a commission at no cost to you.