How the cheapest fare moved
Oct 23: €172 €172
Oct 17
Oct 23
low €168 · high €191
Departure-day prices · September 2023 Hong Kong → Koh Samui
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Return-day prices · September 2023 Koh Samui → Hong Kong
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Best time to visit Koh Samui — climate Jan: ~28°C daytime, 16 rainy days
28°
Jan Feb: ~29°C daytime, 15 rainy days
29°
Feb Mar: ~30°C daytime, 16 rainy days
30°
Mar Apr: ~31°C daytime, 18 rainy days
31°
Apr May: ~31°C daytime, 26 rainy days
31°
May Jun: ~31°C daytime, 19 rainy days
31°
Jun Jul: ~33°C daytime, 13 rainy days
33°
Jul Aug: ~31°C daytime, 21 rainy days
31°
Aug Sep: ~31°C daytime, 20 rainy days
31°
Sep Oct: ~30°C daytime, 29 rainy days
30°
Oct Nov: ~29°C daytime, 21 rainy days
29°
Nov Dec: ~29°C daytime, 15 rainy days
29°
Dec Best value: Oct — fares from €168 and ~30°C daytime.
Flights from Hong Kong to Koh Samui start around €168 (typically 1 stop). Range seen recently: €168–174, based on 21 fares found by travellers.
Fly (from €168)
3h 55m duration
€168–174 recent fares
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Cheapest cached fares Hong Kong → Koh Samui; typically 1 stop (e.g. UO). · Based on 21 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 16 – Nov 22
HK Express · 1 stop · 4h 15m
€351
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Nov 8 – Nov 15
HK Express · 1 stop · 4h 15m
€356
Book
Mar 4 – Mar 16
Thai Lion Air · 1 stop · 4h 20m
€356
Book
Nov 11 – Nov 12
HK Express · 1 stop · 4h 15m
€359
Book
Jun 1 – Jun 10
HK Express · 1 stop · 4h 05m
€364
Book
Nov 12 – Nov 19
HK Express · 1 stop · 4h 15m
€369
Book
Nov 6 – Nov 20
HK Express · 1 stop · 4h 45m
€373
Book
Oct 28 – Nov 4
HK Express · 1 stop · 4h 15m
€376
Book
Weather in Koh Samui
Fri
🌦️
32°
26°
💧90%
Sat
🌦️
30°
25°
💧70%
Sun
⛈️
29°
24°
💧80%
Mon
⛈️
28°
25°
💧84%
Tue
⛈️
26°
24°
💧80%
Wed
🌦️
28°
25°
💧88%
Thu
🌦️
28°
25°
💧86%
In Sep, Koh Samui typically sees ~30°C daytime highs and 20 rainy days.
Where to stay in Koh Samui 3★+ hotels from €23/night (38 hotels sampled, ~3 weeks out).
COSI Samui Chaweng Beach
hotel · Koh Samui
from €23/night ★ 3
Escape Beach Resort
hotel · Koh Samui
from €26/night ★ 3
Montien House Chaweng Beach Resort
hotel · Koh Samui
from €29/night ★ 3
Good to know Time difference -1h
Time in the air 4h 05m
Things to do in Koh Samui Top-rated tours and tickets from €22 — 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).
Popular from Hong Kong 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 2026-10-23. Some links earn Stayonomy a commission at no cost to you.
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