How the cheapest fare moved
Sep 6: €160 €160
Aug 31
Sep 6
low €160 · high €174
Departure-day prices · June 2031 Hong Kong → Koh Samui
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Return-day prices · June 2031 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 €160 and ~30°C daytime.
Flights from Hong Kong to Koh Samui start around €160 (typically 1 stop). Range seen recently: €160–172, based on 15 fares found by travellers.
Fly (from €160)
3h 50m duration
€160–172 recent fares
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Cheapest cached fares Hong Kong → Koh Samui; typically 1 stop (e.g. SL). · Based on 15 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 9 – Oct 23
HK Express · 1 stop · 4h 30m
€336
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Mar 10 – Mar 14
HK Express · 1 stop · 4h 15m
€366
Book
Nov 4 – Nov 10
Thai Lion Air · 1 stop · 4h 20m
€369
Book
Nov 16 – Nov 22
HK Express · 1 stop · 4h 15m
€392
Book
Feb 19 – Mar 1
Singapore Airlines · 1 stop · 6h 00m
€405
Book
Jan 21 – Jan 30
HK Express · 1 stop · 4h 10m
€412
Book
Jan 10 – Jan 30
HK Express · 1 stop · 4h 10m
€419
Book
Jan 24 – Jan 29
HK Express · 1 stop · 4h 10m
€421
Book
Weather in Koh Samui
Mon
⛈️
34°
25°
💧78%
Tue
🌦️
32°
26°
💧64%
Wed
🌧️
31°
25°
💧91%
Thu
⛈️
27°
25°
💧90%
Fri
⛈️
26°
25°
💧99%
Sat
🌧️
26°
25°
💧96%
Sun
🌧️
26°
25°
💧86%
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
Escape Beach Resort
hotel · Koh Samui
from €28/night ★ 3
Montien House Chaweng Beach Resort
hotel · Koh Samui
from €32/night ★ 3
Good to know Time difference -1h
Time in the air 4h 10m
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 2026-09-06. Some links earn Stayonomy a commission at no cost to you.
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