How the cheapest fare moved
Sep 3: €162 €162
Aug 27
Sep 3
low €158 · high €204
Departure-day prices · July 2030 Hong Kong → Koh Samui
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Return-day prices · July 2030 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, 15 rainy days
30°
Mar Apr: ~31°C daytime, 18 rainy days
31°
Apr May: ~30°C daytime, 25 rainy days
30°
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 €158 and ~30°C daytime.
Flights from Hong Kong to Koh Samui start around €158 (typically 1 stop). Range seen recently: €158–170, based on 11 fares found by travellers.
Fly (from €158)
3h 50m duration
€158–170 recent fares
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Cheapest cached fares Hong Kong → Koh Samui; typically 1 stop (e.g. SL). · Based on 11 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
€338
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Mar 10 – Mar 14
HK Express · 1 stop · 4h 15m
€366
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Dec 8 – Dec 16
HK Express · 1 stop · 4h 10m
€378
Book
Nov 24 – Dec 1
Thai Lion Air · 1 stop · 4h 00m
€379
Book
Oct 10 – Oct 14
Thai Lion Air · 1 stop · 3h 50m
€385
Book
Nov 20 – Dec 4
Thai Lion Air · 1 stop · 4h 00m
€391
Book
Oct 2 – Oct 17
HK Express · 1 stop · 3h 55m
€405
Book
Sep 8 – Sep 15
HK Express · 1 stop · 4h 30m
€409
Book
Weather in Koh Samui
Thu
⛈️
33°
25°
💧74%
Fri
🌦️
31°
26°
💧52%
Sat
🌦️
32°
27°
💧76%
Sun
🌧️
32°
25°
💧79%
Mon
🌦️
30°
26°
💧83%
Tue
🌦️
29°
26°
💧96%
Wed
🌦️
30°
25°
💧90%
Where to stay in Koh Samui 3★+ hotels from €21/night (39 hotels sampled, ~3 weeks out).
COSI Samui Chaweng Beach
hotel · Koh Samui
from €21/night ★ 3
Villas Residence By Weekender Resort
hotel · Koh Samui
from €34/night ★ 3
Escape Beach Resort
hotel · Koh Samui
from €35/night ★ 3
Good to know Time difference -1h
Time in the air 3h 50m
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).
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 2026-09-03. Some links earn Stayonomy a commission at no cost to you.
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