How the cheapest fare moved
Jul 25: €74
€74
Jul 22
Jul 25
low €70 · high €74
Departure-day prices · October 2026 Bangkok → Koh Samui
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · October 2026 Koh Samui → Bangkok
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
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 €70 and ~29°C daytime.
Flights from Bangkok to Koh Samui start around €70 (direct flights available). Range seen recently: €70–74, based on 26 fares found by travellers.
Fly (from €70)
1h 05m duration
€70–74 recent fares
Book
Cheapest cached fares Bangkok → Koh Samui; direct flights available (e.g. PG). · Based on 26 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 26 – Nov 1
Bangkok Airways · Direct · 1h 10m
€138
Book
Nov 14 – Nov 24
Bangkok Airways · Direct · 1h 35m
€139
Book
Jan 26 – Jan 30
Bangkok Airways · Direct · 1h 10m
€139
Book
Nov 25 – Nov 28
Bangkok Airways · Direct · 1h 35m
€141
Book
Feb 24 – Mar 8
Bangkok Airways · Direct · 1h 10m
€141
Book
Feb 24 – Mar 11
Bangkok Airways · Direct · 1h 10m
€141
Book
Oct 10 – Oct 30
Bangkok Airways · Direct · 1h 05m
€141
Book
Oct 5 – Oct 20
Bangkok Airways · Direct · 1h 30m
€142
Book
Weather in Koh Samui
Sat
🌦️
30°
26°
💧86%
Sun
🌦️
30°
26°
💧71%
Mon
🌧️
30°
26°
💧86%
Tue
🌧️
29°
25°
💧90%
Wed
🌧️
28°
25°
💧85%
Thu
🌦️
29°
25°
💧82%
Fri
🌦️
29°
25°
💧82%
In Oct, Koh Samui typically sees ~30°C daytime highs and 29 rainy days.
Where to stay in Koh Samui 3★+ hotels from €32/night (34 hotels sampled, ~3 weeks out).
Crystal Lamai Hotel
hotel · Koh Samui
from €32/night ★ 3
COSI Samui Chaweng Beach
hotel · Koh Samui
from €34/night ★ 3
Code Samui Hotel
hotel · Koh Samui
from €72/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 2026-07-25. Some links earn Stayonomy a commission at no cost to you.