Departure-day prices · June 2025 Bangkok → Koh Samui
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Return-day prices · June 2025 Koh Samui → Bangkok
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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: Mar — fares from €65 and ~30°C daytime.
Flights from Bangkok to Koh Samui start around €64 (direct flights available). Range seen recently: €64–74, based on 30 fares found by travellers.
Fly (from €64)
1h 05m duration
€64–74 recent fares
Book
Cheapest cached fares Bangkok → Koh Samui; direct flights available (e.g. PG). · Based on 30 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.
Jan 5 – Jan 10
Bangkok Airways · Direct · 1h 10m
€141
Book
Mar 4 – Mar 18
Bangkok Airways · Direct · 1h 10m
€141
Book
Nov 20 – Nov 24
Bangkok Airways · Direct · 1h 10m
€143
Book
Jan 18 – Feb 2
Bangkok Airways · Direct · 1h 10m
€143
Book
Sep 16 – Sep 21
Bangkok Airways · Direct · 1h 05m
€145
Book
Jan 22 – Jan 28
Bangkok Airways · Direct · 1h 10m
€146
Book
Oct 13 – Oct 27
Bangkok Airways · Direct · 1h 30m
€146
Book
Feb 3 – Feb 21
Bangkok Airways · Direct · 1h 10m
€146
Book
Weather in Koh Samui
Mon
🌦️
33°
27°
💧55%
Tue
☁️
31°
27°
💧10%
Wed
🌦️
32°
27°
💧41%
Thu
🌧️
32°
26°
💧74%
Fri
⛈️
31°
25°
💧76%
Sat
⛈️
31°
26°
💧80%
Sun
🌦️
30°
26°
💧80%
In Jun, Koh Samui typically sees ~32°C daytime highs and 16 rainy days.
Where to stay in Koh Samui 3★+ hotels from €33/night (39 hotels sampled, ~3 weeks out).
Crystal Lamai Hotel
hotel · Koh Samui
from €33/night ★ 3
COSI Samui Chaweng Beach
hotel · Koh Samui
from €51/night ★ 3
Casa De Mar
hotel · Koh Samui
from €66/night ★ 4
Good to know Time difference Same time zone
Time in the air 1h 05m
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 Bangkok 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 2026-08-10. Some links earn Stayonomy a commission at no cost to you.
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