How the cheapest fare moved
Aug 14: €170 €170
Aug 8
Aug 14
low €169 · high €202
Departure-day prices · July 2026 Hong Kong → Koh Samui
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Return-day prices · July 2026 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: Nov — fares from €166 and ~29°C daytime.
Flights from Hong Kong to Koh Samui start around €166 (typically 1 stop). Range seen recently: €166–171, based on 7 fares found by travellers.
Fly (from €166)
3h 50m duration
€166–171 recent fares
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Cheapest cached fares Hong Kong → Koh Samui; typically 1 stop (e.g. SL). · 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.
Nov 4 – Nov 6
Thai Lion Air · 1 stop · 4h 25m
€364
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Sep 4 – Sep 11
HK Express · 1 stop · 4h 30m
€371
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Nov 16 – Nov 22
Thai Lion Air · 1 stop · 4h 25m
€377
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Jan 7 – Jan 28
HK Express · 1 stop · 4h 10m
€386
Book
Jan 24 – Jan 29
HK Express · 1 stop · 4h 10m
€393
Book
Sep 7 – Oct 2
HK Express · 1 stop · 4h 30m
€399
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Sep 21 – Sep 30
Thai Lion Air · 1 stop · 3h 50m
€403
Book
Feb 10 – Feb 24
Emirates · 1 stop · 4h 25m
€410
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Weather in Koh Samui
Sat
⛈️
31°
26°
💧88%
Sun
🌦️
31°
26°
💧79%
Mon
🌧️
30°
25°
💧76%
Tue
🌦️
27°
25°
💧76%
Wed
🌦️
31°
26°
💧55%
Thu
🌦️
32°
26°
💧41%
Fri
🌦️
32°
25°
💧53%
In Jul, Koh Samui typically sees ~33°C daytime highs and 13 rainy days.
Where to stay in Koh Samui 3★+ hotels from €29/night (40 hotels sampled, ~3 weeks out).
COSI Samui Chaweng Beach
hotel · Koh Samui
from €29/night ★ 3
Crystal Lamai Hotel
hotel · Koh Samui
from €33/night ★ 3
Impiana Resort Chaweng Noi
hotel · Koh Samui
from €41/night ★ 4
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 2026-08-14. Some links earn Stayonomy a commission at no cost to you.
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