How the cheapest fare moved
Oct 23: €43 €43
Oct 21
Oct 23
low €43 · high €75
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, 16 rainy days
30°
Mar Apr: ~31°C daytime, 18 rainy days
31°
Apr May: ~31°C daytime, 26 rainy days
31°
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 €43 and ~30°C daytime.
Flights from Bangkok to Koh Samui start around €43 (direct flights available). Range seen recently: €43–75, based on 30 fares found by travellers.
Fly (from €43)
1h 05m duration
€43–75 recent fares
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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.
Nov 20 – Nov 22
Bangkok Airways · Direct · 1h 35m
€130
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Oct 28 – Nov 1
Bangkok Airways · Direct · 1h 10m
€131
Book
Oct 29 – Nov 7
Bangkok Airways · Direct · 1h 10m
€132
Book
Oct 31 – Nov 4
Bangkok Airways · Direct · 1h 10m
€133
Book
Oct 31 – Nov 7
Bangkok Airways · Direct · 1h 10m
€134
Book
Oct 30 – Nov 15
Bangkok Airways · Direct · 1h 10m
€135
Book
Nov 8 – Nov 14
Bangkok Airways · Direct · 1h 10m
€136
Book
Nov 8 – Nov 16
Bangkok Airways · Direct · 1h 10m
€137
Book
Weather in Koh Samui
Sat
🌧️
30°
26°
💧90%
Sun
🌧️
29°
25°
💧84%
Mon
🌧️
28°
24°
💧78%
Tue
⛈️
26°
25°
💧81%
Wed
🌦️
30°
26°
💧92%
Thu
🌦️
28°
25°
💧96%
Fri
🌧️
27°
24°
💧99%
In Oct, Koh Samui typically sees ~30°C daytime highs and 29 rainy days.
Where to stay in Koh Samui 3★+ hotels from €24/night (38 hotels sampled, ~3 weeks out).
COSI Samui Chaweng Beach
hotel · Koh Samui
from €24/night ★ 3
Escape Beach Resort
hotel · Koh Samui
from €26/night ★ 3
Montien House Chaweng Beach Resort
hotel · Koh Samui
from €28/night ★ 3
Good to know Time difference Same time zone
Time in the air 1h 10m
Things to do in Koh Samui Top-rated tours and tickets from €22 — 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 2026-10-24. Some links earn Stayonomy a commission at no cost to you.
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