Cheap flights from Koh Samui to Sihanoukville

Koh Samui
USM
Sihanouk
KOS

Flight deals from Koh Samui to Sihanoukville

Below you can see the best deals on flights Koh Samui — Sihanoukville for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 4 September, from $283.

Top 10 cheap flights from Koh Samui to Sihanoukville

TR
TR
AK
$ 331

Koh Samui — Sihanoukville

19:45—13:00
13 Aug 2026
17 h 15 m
2 stops
TR
TR
AK
$ 364

Koh Samui — Sihanoukville

18:15—13:00
13 Aug 2026
18 h 45 m
2 stops
PG
MH
KT
$ 404

Koh Samui — Sihanoukville

16:20—11:45
12 Aug 2026
19 h 25 m
2 stops
PG
MH
AK
$ 405

Koh Samui — Sihanoukville

19:50—13:00
13 Aug 2026
17 h 10 m
2 stops
TR
TR
AK
$ 415

Koh Samui — Sihanoukville

11:05—13:00
13 Aug 2026
25 h 55 m
2 stops
TR
TR
AK
$ 415

Koh Samui — Sihanoukville

11:05—13:00
13 Aug 2026
25 h 55 m
2 stops
TR
AK
AK
$ 423

Koh Samui — Sihanoukville

11:05—13:00
13 Aug 2026
25 h 55 m
2 stops
PG
AK
AK
$ 424

Koh Samui — Sihanoukville

17:00—13:00
15 Aug 2026
20 h
2 stops
PG
AK
AK
$ 424

Koh Samui — Sihanoukville

12:30—13:00
15 Aug 2026
24 h 30 m
2 stops
TR
TR
AK
$ 431

Koh Samui — Sihanoukville

11:05—13:00
13 Aug 2026
25 h 55 m
2 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Koh Samui — Sihanoukville flight

Looking for cheap flights from Koh Samui to Sihanoukville? Compare fares from different airlines, check the flight schedule and travel time — and book your Koh Samui — Sihanoukville ticket online at the best price.

A nonstop flight takes about 1 h, the distance between the cities is around 403 km.

Planning your trip? You may find our Sihanoukville travel guide, how to get from the airport into town and Sihanoukville weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $283Min. price
SeptemberCheapest
JanuaryPeak season
NoDirect flights
403 kmDistance
1 hTravel time

Flight ticket prices by day: Koh Samui — Sihanoukville

Below is a calendar of the lowest flight ticket prices for Koh Samui — Sihanoukville by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $283 in September, and the most expensive are around $437 in January. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Koh Samui to Sihanoukville by month. Tickets are usually cheapest in November (around $404) and priciest in January (about $686) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$686highMay$490mediumSep$417low
Feb$637highJun$429lowOct$441low
Mar$564mediumJul$466mediumNov$404low
Apr$539mediumAug$478mediumDec$662high

Some values are estimated based on seasonality.

When to fly

Weather in Sihanoukville: it is warmest in April (up to 31 °C on average) and coolest in September (around 28 °C). The driest month is January.

Tickets are usually cheapest in September and most expensive in January. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Sihanoukville

Dry and wet days · Sihanoukville

Wind speed and direction · Sihanoukville

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How to get the best deal on a Koh Samui — Sihanoukville ticket

  • Book ahead: fares for Koh Samui — Sihanoukville are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Sihanoukville is usually September — plan your trip around it if your dates are flexible.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

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We couldn't find any airlines on this route, but that doesn't mean there aren't any. Try searching — we'll show you the latest options.

Cities and airports on the Koh Samui — Sihanoukville route

Flights Koh Samui — Sihanoukville depart from Koh Samui Airport and arrive at Sihanouk International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Koh Samui

USM
Thailand
About the cityHow to get thereWeatherAll about the country Thailand
Arrival

Sihanoukville

KOS
Cambodia
About the cityHow to get thereWeatherAll about the country Cambodia
Departure airports
Arrival airports

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Frequently asked questions about the Koh Samui — Sihanoukville flight

How long is the flight from Koh Samui to Sihanoukville?

A nonstop Koh Samui — Sihanoukville flight takes about 1 h — the distance between the cities is around 403 km.

How far is it from Koh Samui to Sihanoukville?

The distance from Koh Samui to Sihanoukville is about 403 km.

Which airports do Koh Samui — Sihanoukville flights use?

Flights from Koh Samui depart from Koh Samui Airport, and arrive at Sihanouk International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Koh Samui to Sihanoukville?

The price of a Koh Samui — Sihanoukville ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in January. Tickets typically cost between $283 and $437. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Koh Samui — Sihanoukville?

Flights Koh Samui — Sihanoukville are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Koh Samui to Sihanoukville?

To catch a low fare Koh Samui — Sihanoukville, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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