USM

฿1,710 Find Cheap Flights to Ko Samui – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ko Samui departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ko Samui, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ko Samui, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
฿3,881
Typical prices: ฿6,775-฿6,611
Bangkok Airways
Thu 3/9Fri 4/9
KBV - USM • Direct
Cheapest one-way flight
฿1,710
Typical prices: ฿3,092-฿3,782
Bangkok Airways
Mon 21/9
KBV - USM • Direct
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 14 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Ko Samui

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Ko Samui

Thu 3 Sep - Fri 4 Sep
Bangkok Airways Logo
18:25 - 19:15
KBV
-
USM
0h 50mdirect
Bangkok Airways Logo
17:00 - 17:50
USM
-
KBV
0h 50mdirect
฿3,881Bangkok Airways
Wed 2 Sep - Thu 10 Sep
Bangkok Airways Logo
17:20 - 18:25
UTP
-
USM
1h 05mdirect
Bangkok Airways Logo
11:10 - 12:20
USM
-
UTP
1h 10mdirect
฿3,881Bangkok Airways
Sat 12 Sep - Wed 23 Sep
Bangkok Airways Logo
09:35 - 10:30
HKT
-
USM
0h 55mdirect
Bangkok Airways Logo
14:30 - 15:30
USM
-
HKT
1h 00mdirect
฿4,835Bangkok Airways
Thu 3 Sep - Fri 18 Sep
Bangkok Airways Logo
09:35 - 10:30
HKT
-
USM
0h 55mdirect
Bangkok Airways Logo
15:25 - 16:25
USM
-
HKT
1h 00mdirect
฿4,868Bangkok Airways
Tue 22 Sep - Sat 26 Sep
Bangkok Airways Logo
11:00 - 11:55
HKT
-
USM
0h 55mdirect
Bangkok Airways Logo
19:00 - 20:00
USM
-
HKT
1h 00mdirect
฿4,900Bangkok Airways
Tue 22 Sep - Sat 26 Sep
Bangkok Airways Logo
07:30 - 08:25
HKT
-
USM
0h 55mdirect
Bangkok Airways Logo
09:15 - 10:15
USM
-
HKT
1h 00mdirect
฿4,933Bangkok Airways
Tue 1 Sep - Mon 21 Sep
Bangkok Airways Logo
19:30 - 20:25
HKT
-
USM
0h 55mdirect
Bangkok Airways Logo
08:00 - 09:00
USM
-
HKT
1h 00mdirect
฿5,065Bangkok Airways
Wed 2 Sep - Thu 10 Sep
Bangkok Airways Logo
17:20 - 18:25
UTP
-
USM
1h 05mdirect
Bangkok Airways Logo
08:00 - 16:50
USM
-
UTP
8h 50m
1 stop
฿5,131Bangkok Airways
Mon 19 Oct - Mon 26 Oct
Multiple Airlines Logo
22:00 - 08:25
BKK
-
USM
10h 25m
1 stop
Multiple Airlines Logo
07:00 - 08:15
USM
-
BKK
1h 15mdirect
฿6,545Multiple Airlines
Wed 2 Sep - Sun 6 Sep
Multiple Airlines Logo
07:05 - 14:50
BKK
-
USM
7h 45m
1 stop
Multiple Airlines Logo
12:10 - 20:45
USM
-
BKK
8h 35m
1 stop
฿6,676Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Ko Samui

Get data-powered insights and trends into flights to Ko Samui to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ko Samui?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 3 days, the cheapest flight deal to Ko Samui was found on the route from Krabi, at ฿3,881 return. The most popular connection is from Bangkok to Ko Samui and KAYAK users have found return deals for as low as ฿6,380 in the last 3 days.

What is the cheapest day to fly to Ko Samui?

The average price of all round-trip flights to Ko Samui clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Ko Samui is Sunday where round-trip tickets can be as cheap as ฿7,216. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are ฿9,335 on average.

What is the cheapest month to fly to Ko Samui?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Ko Samui, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ko Samui is November, where tickets cost ฿6,512 on average for return flights. On the other hand, the most expensive months are July and March, where the average cost of tickets from Thailand is ฿9,899 and ฿9,603 respectively. For one-way flights, the best month to travel is October with an average price of ฿3,651.

What is the cheapest time of day to fly to Ko Samui?

The average price for all round-trip flights to Ko Samui depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ko Samui is generally in the morning, when round-trip flights cost ฿8,880 on average. The most expensive time of day to fly to Ko Samui is generally in the afternoon, which is peak travel time and where the average cost of a ticket is ฿10,403.

What is a good deal for flights to Ko Samui?

If you’re looking for cheap airfare to Ko Samui, 25% of our users found tickets to Ko Samui for the following prices or less: From Bangkok Suvarnabhumi Airport ฿7,653 return.

How far in advance should I book a flight to Ko Samui?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ko Samui, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 14 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know – Book Cheap Ko Samui Plane Tickets

Low seasonMay
Cheapest flight฿1,710
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Krabi to Ko Samui

When to book flights to Ko Samui

Are your dates flexible? Find out the best times to travel to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Ko Samui based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Ko Samui flights

  • What is the cheapest flight to Ko Samui?

    In the last 3 days, the cheapest flight deal to Ko Samui was found on the route from Krabi, at ฿3,881 return. The most popular connection is from Bangkok to Ko Samui and KAYAK users have found return deals for as low as ฿6,380 in the last 3 days.

  • How far is Ko Samui Airport from central Ko Samui?

    The city centre of Ko Samui is 3 km from Ko Samui.

  • What is the name of Ko Samui’s airport?

    Ko Samui is served by Ko Samui Airport, also commonly referred to as Ko Samui, Koh Samui, or Samui. The airport code is USM.

  • How much is a flight to Ko Samui?

    On average, a flight to Ko Samui costs ฿6,820. The cheapest price found on KAYAK in the last 2 weeks cost ฿2,635 and departed from Bangkok Suvarnabhumi Airport.

  • How does KAYAK find such low prices on flights to Ko Samui?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ko Samui.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ko Samui?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ko Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ko Samui?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ko Samui

  • Looking for cheap airfare to Ko Samui? 25% of our users found return tickets to Ko Samui for the following prices or less: From Phuket City ฿3,618, from Chiang Mai ฿7,990, from Bangkok Suvarnabhumi ฿8,526
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ko Samui flight deals.

Reviews of the top airline flying to Ko Samui

 
See real verified KAYAK customer reviews for airlines flying to Ko Samui. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Ko Samui. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Bangkok AirwaysOverall score based on 130 reviews
8.1Boarding
8.5Crew
6.2Entertainment
7.9Comfort
7.3Food
Airline reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

10.0 Excellentpuravi, Jan 2026
KBV - BKK
Read more Bangkok Airways reviews

Excellent airline. Seats were very comfortable with lots of legroom. In flight service was excellent as well

We were pleased with the flight experience. Nothing to complain or shout about. Unfortunately the rating scale in this survey will skew the results and give a false impression of what really happened. For example, we didn’t use the entertainment system yet we are forced to reply. A far more insightful scale would include “not applicable.”

We flew business class this time. The food in their economy class is much better in general. Also only coffee, tea and orange juice is free. Beer can be bought only. Same as economy, so their business class service is poor.

Nice flight, stress-free but why bother serving a meal on a 55 minute flight. From what I saw there was a lot of waste because travellers weren't interesting in eating on this short trip. Get rid of the meal and cut the price.

Generally good. I didn't have any food on the flight so I can't make a judgement. It smelled good.

Efficient, comfortable and clean-very good flight with friendly staff and crew

On a 45 mins flight to Koh Samui from Bangkok we were served delicious shrimp pad thai and hot tea. The flight crew did an awesome job serving a full flight.

Seats are tight and leg room so small. We had deep impressions under kneecap from the seat in front. A sign that Bangkok Airways is fully aware how small it is built is the cutout in the table. Very uncomfortable for people in size 1.80 m or more.

This is my 2nd flight with this airline. Service is very good. I was surprised they served a meal on such a short flight. The airplane landed so smooth that most people were unaware the plane had just landed. About half of the people on board applauded.

The staff were helpful and very pleasant. The food is tasty and there’s plenty of water provided. Flights are well air conditioned.

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Khanom
Ko Pha Ngan

Everything you need to know for your flight to Ko Samui

Information on the airport you'll fly into in Ko Samui