USM

€380 Find Cheap Flights to Ko Samui

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 4/2. 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
€667
Typical prices: €768-€1,029
Multiple Airlines
Sun 8/3Mon 23/3
DUB - USM • 3 stops
Cheapest one-way flight
€404
Multiple Airlines
Wed 4/2
DUB - USM • 3 stops
When to travel
April
Cheapest • 25% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Sun, 8 Mar - Mon, 23 Mar
Multiple Airlines Logo
08:30 - 08:00
DUB
-
USM
40h 30m
3 stops
Multiple Airlines Logo
08:15 - 17:00
USM
-
DUB
39h 45m
3 stops
€667Multiple Airlines
Wed, 3 Jun - Sat, 20 Jun
KLM Logo
13:25 - 16:35
DUB
-
USM
21h 10m
2 stops
KLM Logo
07:50 - 22:25
USM
-
DUB
20h 35m
2 stops
€726KLM
Sun, 15 Mar - Mon, 30 Mar
Multiple Airlines Logo
16:20 - 17:10
DUB
-
USM
41h 50m
3 stops
Multiple Airlines Logo
08:00 - 15:35
USM
-
DUB
37h 35m
3 stops
€726Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
17:55 - 08:00
DUB
-
USM
31h 05m
2 stops
Multiple Airlines Logo
08:15 - 16:35
USM
-
DUB
39h 20m
3 stops
€727Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Etihad Airways Logo
08:05 - 19:50
DUB
-
USM
28h 45m
2 stops
Etihad Airways Logo
07:55 - 06:25
USM
-
DUB
29h 30m
2 stops
€743Etihad Airways
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
17:15 - 08:00
DUB
-
USM
31h 45m
3 stops
Multiple Airlines Logo
08:15 - 16:35
USM
-
DUB
39h 20m
3 stops
€772Multiple Airlines
Sun, 15 Mar - Mon, 30 Mar
Multiple Airlines Logo
08:15 - 21:20
DUB
-
USM
30h 05m
2 stops
Multiple Airlines Logo
08:00 - 21:40
USM
-
DUB
43h 40m
3 stops
€775Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
08:05 - 17:50
DUB
-
USM
26h 45m
2 stops
Multiple Airlines Logo
08:50 - 06:25
USM
-
DUB
52h 35m
2 stops
€784Multiple Airlines
Wed, 10 Jun - Sun, 14 Jun
British Airways Logo
20:30 - 18:15
ORK
-
USM
39h 45m
2 stops
British Airways Logo
16:25 - 23:45
USM
-
ORK
37h 20m
2 stops
€1,100British Airways
Wed, 10 Jun - Sun, 14 Jun
British Airways Logo
20:30 - 21:10
ORK
-
USM
42h 40m
2 stops
British Airways Logo
16:25 - 23:45
USM
-
ORK
37h 20m
2 stops
€1,103British Airways
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 month to fly to Ko Samui?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for 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 April, where tickets cost €802 on average for one-way flights. On the other hand, the most expensive months are December and October, where the average cost of tickets from Ireland is €1,926 and €1,268 respectively. For return trips, the best month to travel is April with an average price of €802.

Good to know – Book Cheap Ko Samui Plane Tickets

Low seasonJanuary
Cheapest flight€404
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Dublin 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

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

    The distance between Ko Samui Airport and the city centre of Ko Samui is 3 km.

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

    All flights to Ko Samui land at Ko Samui Airport. The airport code is USM,and it can also be referred to as Ko Samui, Koh Samui, or Samui.

  • What is the cheapest day to fly to Ko Samui?

    Based on KAYAK data, the cheapest day to fly to Ko Samui is Thursday where tickets can be as cheap as €494. On the other hand, the most expensive day to fly is Monday, where prices are €632 on average.

  • 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.

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

    The cheapest time of day to fly to Ko Samui is generally in the evening, when flights cost €525 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 €591.

Top tips for finding cheap flights to Ko Samui

  • 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 Ireland 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.
7.4
Qatar AirwaysOverall score based on 3732 reviews
7.9Crew
7.4Entertainment
7.3Food
7.5Boarding
7.4Comfort
Airline reviews

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

2.0 MediocreAnonymous, Jan 2026
HYD - DOH
Read more Qatar Airways reviews

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

This flight was a very good trip for us. The crew were very friendly and helpful. They made arrangements for my husband to have assistance in boarding. We were not expecting a meal, so it was a pleasant surprise on this short flight to have a meal and beverage from a very courteous crew.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

Nice airline. I was in a really weird seat which had extra leg room, but no basket or stowage. And the people next to me were pretty noisy during the flight, so it was hard to rest. I wish staff came around to pick up trash more often as I had no where to put it except my lap or the floor.

Looks like a local flight. Food was horrible. No entertainment system.

Very efficient and professional staff. Food was good and so was entertainment selection.

My baggage is lost. Flight cancelled, Rebooked ticket through long routes. Mental stress, emotional hurt

My flight was delayed. I was rebooked twice and even the second flight that was additional connection in London was delayed too, so I ended up spending more than 24 hours flying between four different countries and to be honest I’m not sure whether I ever want to use this airline again. My luggage is still delete. It’s been more than 48 hours now so to be honest, I’m not even sure how to describe the level of frustration I have.

I wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

I prebooked a comfort plus seat on this flight and therefore the flight was comfy. I got the correct seat in the correct section of the plane that I have booked, that's this. Flight was comfortable. Staff were average on the flight, appearing to be rushed and short in engagement with travellers, perhaps this to maximise there rest time on the flight.

Travelling to a place near Ko Samui?

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

Everything you need to know for your flight to Ko Samui

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