USM

€356 Find Cheap Flights to Ko Samui – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
€703
Overall average: €917
Multiple Airlines
Sat 10/10Sat 17/10
DUB - USM • 3 stops
Cheapest one-way flight
€356
Multiple Airlines
Sun 4/10
DUB - USM • 3 stops
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Flight Deals

Cheap Flights to Ko Samui

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Ko Samui

Sat, 10 Oct - Sat, 17 Oct
Multiple Airlines Logo
08:40 - 20:25DUB  Dublin-USM Ko Samui
29h 45m3 stops Vienna Intl Sharjah Phuket City
Multiple Airlines Logo
19:00 - 19:05USM  Ko Samui-DUB Dublin
30h 05m2 stops Phuket City Abu Dhabi Zayed Intl
€703Multiple Airlines
Mon, 12 Oct - Mon, 19 Oct
Multiple Airlines Logo
07:25 - 20:25DUB  Dublin-USM Ko Samui
31h 00m3 stops Václav Havel Prague Sharjah Phuket City
Multiple Airlines Logo
08:00 - 07:15USM  Ko Samui-DUB Dublin
29h 15m2 stops Phuket City Abu Dhabi Zayed Intl
€704Multiple Airlines
Mon, 12 Oct - Mon, 19 Oct
Multiple Airlines Logo
06:05 - 18:00DUB  Dublin-USM Ko Samui
29h 55m3 stops Athens Eleftherios V. Sharjah Phuket City
Multiple Airlines Logo
08:00 - 07:15USM  Ko Samui-DUB Dublin
29h 15m2 stops Phuket City Abu Dhabi Zayed Intl
€706Multiple Airlines
Mon, 12 Oct - Mon, 19 Oct
Multiple Airlines Logo
20:35 - 07:10DUB  Dublin-USM Ko Samui
28h 35m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
06:00 - 19:05USM  Ko Samui-DUB Dublin
19h 05m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€706Multiple Airlines
Thu, 17 Sep - Wed, 30 Sep
Etihad Airways Logo
09:00 - 18:00DUB  Dublin-USM Ko Samui
27h 00m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
11:25 - 07:15USM  Ko Samui-DUB Dublin
25h 50m2 stops Phuket City Abu Dhabi Zayed Intl
€776Etihad Airways
Thu, 17 Sep - Wed, 30 Sep
Etihad Airways Logo
09:00 - 18:00DUB  Dublin-USM Ko Samui
27h 00m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
08:00 - 07:15USM  Ko Samui-DUB Dublin
29h 15m2 stops Phuket City Abu Dhabi Zayed Intl
€777Etihad Airways
Fri, 16 Oct - Sat, 14 Nov
Etihad Airways Logo
09:00 - 14:45DUB  Dublin-USM Ko Samui
23h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
21:10 - 18:10USM  Ko Samui-DUB Dublin
28h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€804Etihad Airways
Fri, 16 Oct - Sat, 14 Nov
Etihad Airways Logo
09:00 - 15:25DUB  Dublin-USM Ko Samui
24h 25m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
21:10 - 18:10USM  Ko Samui-DUB Dublin
28h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€805Etihad Airways
Sat, 9 Jan - Sat, 30 Jan
Qatar Airways Logo
14:05 - 18:15DUB  Dublin-USM Ko Samui
21h 10m2 stops Doha Hamad Intl Singapore Changi
Qatar Airways Logo
15:50 - 06:00USM  Ko Samui-DUB Dublin
21h 10m2 stops Phuket City Doha Hamad Intl
€1,014Qatar Airways
Sat, 9 Jan - Sat, 30 Jan
Qatar Airways Logo
14:05 - 18:15DUB  Dublin-USM Ko Samui
21h 10m2 stops Doha Hamad Intl Singapore Changi
Qatar Airways Logo
15:50 - 06:00USM  Ko Samui-DUB Dublin
21h 10m2 stops Phuket City Doha Hamad Intl
€1,014Qatar 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 are the most popular airlines flying to Ko Samui?

The most popular airline among KAYAK users flying to Ko Samui is Etihad Airways, followed by Qatar Airways.

Good to know – Book Cheap Ko Samui Plane Tickets

Low season

January

Cheapest flight

€356
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (10% more expensive 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

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.

  • 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

  • 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 airlines flying to Ko Samui

 
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 3725 reviews
7.3Comfort
7.5Boarding
7.3Entertainment
7.9Crew
7.3Food
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
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.

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.

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.

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

Boarding procedures are very tiring. We have to clear security twice for our connecting flights from Doha. Also every time we board flights we have to show boarding passes 5-6 times.

Each and every requirement was nicely provided by all staff no very be happy

I didn’t not pay to fly with American Airlines!!!!!!!they are the worst!!

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.

I paid 44 $ for seat upgrade (22D) and my seat was stack in high position for all the 6 hours of flight. I don't recommend the upgrade. I am looking to get my upgrade payment back

One of your male flight attendant was pushy and a bit of a martinette. Completely unnecessary.

Same problem place in the middle so small Im 1,85 m so not good 👍

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

i was not allowed to use lounge, although i had business class ticket, and nobody told me my ticket was not eligible to use lounge

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

My wife and I were upgraded to Business Class on our Dublin-Abu-Dhabi flight on the 22nd of January. Being served by "Mariyan" (not too sure about her name, she's from Tunisia) was the real highlight of our flight, she deserves to be working with etihad. We are looking forward to the next upgrade as we are flying back to Dublin on February 01, 2024. If I am not mistaken we have just reached GOLD status as Etihad Guests.

Transit time could be 15 min longer atleast. It was right on the dot to boarding time. Giving minimal time to do shopping

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