DUB - USM

€385 Find Cheap Flights from Dublin 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 from Dublin to Ko Samui departing on 15/11. 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 in flight searches from Dublin 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 in flight searches from Dublin to Ko Samui, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€759
Typical prices: €965-€797
Lufthansa
Tue 3/11Tue 17/11
DUB - USM • 2 stops
Cheapest one-way flight
€385
Multiple Airlines
Sun 15/11
DUB - USM • 3 stops
Top airlines
Cheapest • from €759 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Dublin and Ko Samui. You’ll need at least 2 connections.
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 92% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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 from Dublin to Ko Samui (DUB-USM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin 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 from Dublin to Ko Samui

Tue, 3 Nov - Tue, 17 Nov
Lufthansa Logo
11:45 - 21:05
DUB
-
USM
26h 20m
2 stops
Lufthansa Logo
13:25 - 10:05
USM
-
DUB
27h 40m
2 stops
€759Lufthansa
Wed, 2 Sep - Thu, 10 Sep
Etihad Airways Logo
20:35 - 10:30
DUB
-
USM
31h 55m
2 stops
Etihad Airways Logo
19:00 - 19:05
USM
-
DUB
30h 05m
2 stops
€774Etihad Airways
Sat, 7 Nov - Sat, 14 Nov
Multiple Airlines Logo
19:50 - 11:55
DUB
-
USM
33h 05m
2 stops
Multiple Airlines Logo
07:00 - 06:25
USM
-
DUB
30h 25m
2 stops
€792Multiple Airlines
Tue, 3 Nov - Tue, 17 Nov
Lufthansa Logo
09:10 - 21:05
DUB
-
USM
28h 55m
2 stops
Lufthansa Logo
13:25 - 10:05
USM
-
DUB
27h 40m
2 stops
€799Lufthansa
Mon, 14 Sep - Tue, 29 Sep
Multiple Airlines Logo
09:00 - 15:10
DUB
-
USM
24h 10m
2 stops
Multiple Airlines Logo
06:00 - 19:05
USM
-
DUB
19h 05m
2 stops
€801Multiple Airlines
Sat, 3 Oct - Tue, 13 Oct
Etihad Airways Logo
20:35 - 08:15
DUB
-
USM
29h 40m
2 stops
Etihad Airways Logo
20:35 - 19:05
USM
-
DUB
28h 30m
2 stops
€817Etihad Airways
Tue, 3 Nov - Tue, 17 Nov
Multiple Airlines Logo
09:10 - 21:05
DUB
-
USM
28h 55m
2 stops
Multiple Airlines Logo
09:20 - 17:45
USM
-
DUB
39h 25m
2 stops
€818Multiple Airlines
Sat, 29 Aug - Sun, 27 Sep
Multiple Airlines Logo
09:00 - 17:05
DUB
-
USM
26h 05m
2 stops
Multiple Airlines Logo
08:45 - 19:05
USM
-
DUB
40h 20m
2 stops
€834Multiple Airlines
Thu, 10 Sep - Mon, 14 Sep
Qatar Airways Logo
08:15 - 20:25
DUB
-
USM
30h 10m
2 stops
Qatar Airways Logo
19:00 - 20:15
USM
-
DUB
31h 15m
2 stops
€856Qatar Airways
Thu, 10 Sep - Mon, 14 Sep
Qatar Airways Logo
08:15 - 20:25
DUB
-
USM
30h 10m
2 stops
Qatar Airways Logo
19:00 - 20:15
USM
-
DUB
31h 15m
2 stops
€858Qatar Airways
Booking Insights

KAYAK's insights & trends for Dublin to Ko Samui flights

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

How much is a return flight from Dublin to Ko Samui?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Ko Samui departing in November.

What is the cheapest month to fly from Dublin to Ko Samui?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin 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 from Dublin to Ko Samui is January, where tickets cost €0 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is €1,969 and €1,287 respectively.

Good to know

Low seasonSeptember
Cheapest flight€385
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from Dublin to Ko Samui

When to book flights from Dublin to Ko Samui

Are your dates flexible? Find out the best times to travel from Dublin 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Dublin to Ko Samui

  • What are the options for travelling from Koh Samui Airport to other parts of the island?

    Private taxis are a good option for travelling to your destination. Fares range from about ฿400-1000 (€11-27) depending on the location you are travelling to. You could also choose to book a minivan, which will cost about ฿600-1500 (€17-41). Shared minivans tend to be cheaper at around ฿100-600 (€3-17) but there can be a wait of up to 30min depending on how many passengers the minivan holds. Your journey time will depend on your destination on the island but journeys to the opposite end of the island take around 45min.

  • Can I fly directly from Dublin to Koh Samui?

    Flights from Dublin Airport to Koh Samui airport usually have at least two stops. Most flights between these airports have stops in cities like Zurich, Istanbul, Abu Dhabi and Bangkok.

  • Are there services for passengers flying from Dublin with young children?

    Dublin Airport has useful baby feeding rooms located in Terminals 1 and 2. These free spaces have a private environment where you can use a microwave, high chair and bottle warmer while taking advantage of comfortable seating.

  • What is the cheapest flight from Dublin to Ko Samui?

    In the last 3 days, the lowest price for a flight from Dublin to Ko Samui was €385 for a one-way ticket and €759 for a return.

  • Which airports will I be using when flying from Dublin to Ko Samui?

    When flying out of Dublin you will be using Dublin. You will be landing at Ko Samui, also known as Ko Samui.

  • Which aircraft models fly most regularly from Dublin to Ko Samui?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Dublin to Ko Samui?

    oneworld is the only airline alliance operating flights between Dublin and Ko Samui.

  • Which is the best airline for flights from Dublin to Ko Samui, Etihad Airways or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Dublin to Ko Samui are Etihad Airways and Qatar Airways. With an average price for the route of €1,035 and an overall rating of 7.3, Etihad Airways is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of €1,221 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Dublin 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 from Dublin to Ko Samui.

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

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

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

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin 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 from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Ko Samui

  • Dublin Airport (DUB) offers a Fast-Track Security Service to help passengers move more quickly through security in Terminals 1 and 2. The service costs around €6-8 for access to a dedicated Fast-Track channel, SMS flight updates and a hot drink.
  • Koh Samui Airport (USM) has three lounges for passengers to enjoy while travelling. There are two lounges in the Domestic Terminal and one in the International Terminal. These offer TVs, flight monitors and Wi-Fi along with drinks, snacks, and premium food options. Entry to the lounges costs from around ฿930 (€25).
  • Passengers can take advantage of free Wi-Fi when travelling through Dublin Airport. The service is unlimited with no registration required. There are also free charging stations located around the airport where passengers can charge their electronic devices from comfortable seating.

Reviews of the top airlines flying from Dublin to Ko Samui

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Ko Samui. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin 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.
7.3
Qatar AirwaysOverall score based on 3727 reviews
7.5Boarding
7.3Entertainment
7.9Crew
7.3Comfort
7.3Food
Airline reviews

Qatar Airways has gone down over the last few years.

6.0 GoodAnonymous, Mar 2026
KWI - DOH
Read more Qatar Airways reviews

Qatar Airways has gone down over the last few years.

My journey with Qatar Airways from Ahmedabad to Jacksonville on 3rd February 2026 was truly exceptional. The entire experience reflected comfort, care, and world-class service. Complimentary high-quality Wi-Fi throughout the journey was a welcome luxury, especially on a long-haul flight. The vegetarian meals were thoughtfully prepared, delicious, and served with attention to detail, along with a fine selection of snacks and beverages. What truly elevated the experience was the cabin crew — graceful, courteous, and genuinely attentive, delivering outstanding hospitality at every step. This journey perfectly showcased the premium standard Qatar Airways is known for, and it left a lasting impression. I would gladly fly with them again.

Impressive as always. It is the airline of my choice, The dessert on the 2nd flight DOH-IAH was somewhat dry (the cake with cream etc) Check-in and boarding experience was fantastic, with the exception of CCU airport where chk-in staff refused to help with aisle seats stating the flight was full and accommodations were beyond him. Once I boarded there were plenty of available aisles. I was disappointed that this could not be done by self during online chk-in nor at the airport. Nothing more to add. Overall a good experience, TY QTR

The boarding process was awful-the computers were down and there was no way to check in. Took extremely long, very chaotic and no guarantee our bags were even getting on the plane. I was also delayed and took away from any time i had to catch a connecting flight.

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.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

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.

I wish I knew in advance that the connecting flight was by indigo air

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

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

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Ethiad wanted to charge me $1100 for 2 checked bags on a ticket that was $550. Nother the airline or airfare assist was willing to help before arriving at the airport. All parties said it was the other responsibility to help. Never flying ethiad or using kayak again.

No entertainment except on app. No outlets working to charge. Good service

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

There was not any issues with the Etihad Airways. Staff was excellent and I love the variety of movies and games that they provided.

Everything you need to know for your flight from Dublin to Ko Samui

Information on your arrival and departure airports