Cheap Flights from Koh Samui to Siem Reap

Cheapest flights from Koh Samui to Siem Reap

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Koh Samui to Siem Reap. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$184

Bangkok Airways

1 layover

11h 45m

03/13/2027

The cheapest one-way flight from Koh Samui to Siem Reap departs on 03/13/2027, is operated by Bangkok Airways and costs $184

Cheapest round trip flight

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There is no information about the cheapest roundtrip flight from Koh Samui to Siem Reap

The fastest flight

5h 40m

Fastest flight from Koh Samui to Siem Reap takes 5h 40m

Direct flights

No direct flights

There are no direct flights on this route.

Distance

591km

Timezone difference

0h

The distance between Koh Samui and Siem Reap is 591km (366 miles). Koh Samui and Siem Reap are in the same time zone

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Koh Samui to Siem Reap by month

In different months, ticket prices from Koh Samui to Siem Reap vary: minimum — $184 (March 2027), maximum — $309 (January 2027). Typically, the flight costs $236–$244.

March 2027

Lowest price

on average:

$184

January 2027

Highest price

on average:

$309

Avg Price

Price dynamics

The price trend from Koh Samui to Siem Reap resembles a smile: costs drop, bottom out, then recover. Knowing this, you can pick dates with the best prices.

Cheaper and more expensive periods

Prices fall from September 2026 to October 2026 (15%), then rise from October 2026 to January 2027 (+49%). The best period is September 2026–October 2026 ($226), the most expensive is October 2026–January 2027 ($259).

Best time to buy

The best time to buy is September 2026–October 2026, when prices are at their lowest. This can save you up to 13% compared to the expensive months (October 2026–January 2027).

Price predictability

Monthly price variation is 19.9%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.

Airlines operating on route

The Koh Samui — Siem Reap route is served by multiple airlines, including Bangkok Airways and Scoot. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $184, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.

Bangkok Airways

starting at $184

Scoot

starting at $258

Non-stop flights from Koh Samui to Siem Reap

A non-stop flight is the most convenient and comfortable way to fly from Koh Samui to Siem Reap, despite the fact that sometimes flights with transfers can cost significantly less.

There appear to be no non-stop flights from Koh Samui to Siem Reap at this time.... Well, or something went wrong on our side and we couldn't find anything

Schedule of direct flights from Koh Samui to Siem Reap

There are most likely no direct flights on the Koh Samui — Siem Reap route

Koh Samui airports overview

Koh Samui Airport

•

USM

Serving Koh Samui island in the Gulf of Thailand, it offers domestic and regional connections for resort travelers, with frequent charters and short-runway operations suited to turboprops and short-haul jets.

•

Siem Reap airports overview

Siem Reap International Airport

•

SAI

Serves Siem Reap and the Angkor temple complex, handling domestic and regional international flights with convenient access to tourist facilities and transfers.

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Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Koh Samui to Siem Reap?

The cheapest flight ticket from Koh Samui to Siem Reap according to data for the last 48 hours costs $184

When is the best time to buy air tickets on the route Koh Samui — Siem Reap?

Often the best time to buy tickets from Koh Samui to Siem Reap is 2 months before departure.

When is the cheapest time of year to fly from Koh Samui to Siem Reap?

Based on statistics over the past years, the lowest prices for flights from Koh Samui to Siem Reap can be found flying in these months: March, October, September.

How long does it take to fly from Koh Samui to Siem Reap?

The fastest flights from Koh Samui to Siem Reap start from 5 hours 40 minutes in the air.

Which airline can fly direct from Koh Samui to Siem Reap?

The following airlines operate direct flights on the route Koh Samui — Siem Reap:

Special offers and sales on air tickets from Koh Samui to Siem Reap

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Koh Samui to Siem Reap

Alternative routes

Alor Setar ➜ Siem Reap•Bangkok ➜ Siem Reap•Hat Yai ➜ Siem Reap•Ipoh ➜ Siem Reap•Kota Bharu ➜ Siem Reap•Myeik ➜ Siem Reap•Nakhon Si Thammarat ➜ Siem Reap•Surat Thani ➜ Siem Reap•Rach Gia ➜ Siem Reap•Koh Samui ➜ Bangkok•Koh Samui ➜ Khon Kaen•Koh Samui ➜ Phnom Penh•Koh Samui ➜ Pleiku•Koh Samui ➜ Ho Chi Minh City•Koh Samui ➜ Udon Thani•Koh Samui ➜ Can Tho•Koh Samui ➜ Rach Gia•Koh Samui ➜ Savannakhet

•••••••••••••••••••

Cheapest one way flight

$184

Bangkok Airways

1 layover

11h 45m

03/13/2027

The cheapest one-way flight from Koh Samui to Siem Reap departs on 03/13/2027, is operated by Bangkok Airways and costs $184

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Koh Samui to Siem Reap

The fastest flight