USM

€539 Find Cheap Flights to Ko Samui – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€681
Typical prices: €940-€1,371
Multiple Airlines
Thu 8/11Thu 15/11
DUB - USM • 2 stops
Cheapest one-way flight
€539
Typical prices: €680-€1,014
Qatar Airways
Thu 6/12
DUB - USM • 2 stops
Top airlines
Best reviews • 7.8 score
Airline reviews
Airline reviews
Top routes
Cheapest • 13% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 47% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Ko Samui!
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Booking Insights
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

Thu, 29 Oct - Wed, 11 Nov
Multiple Airlines Logo
08:05 - 20:25DUB  Dublin-USM Ko Samui
29h 20m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
20:30 - 18:10USM  Ko Samui-DUB Dublin
28h 40m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€672Multiple Airlines
Sun, 8 Nov - Sun, 15 Nov
Multiple Airlines Logo
08:05 - 18:25DUB  Dublin-USM Ko Samui
27h 20m2 stops Abu Dhabi Zayed Intl Phuket City
Multiple Airlines Logo
07:00 - 06:30USM  Ko Samui-DUB Dublin
30h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€681Multiple Airlines
Thu, 29 Oct - Wed, 11 Nov
Multiple Airlines Logo
07:45 - 18:25DUB  Dublin-USM Ko Samui
27h 40m2 stops Doha Hamad Intl Phuket City
Multiple Airlines Logo
21:10 - 18:10USM  Ko Samui-DUB Dublin
28h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€682Multiple Airlines
Thu, 29 Oct - Wed, 11 Nov
Multiple Airlines Logo
08:05 - 20:25DUB  Dublin-USM Ko Samui
29h 20m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
20:30 - 18:10USM  Ko Samui-DUB Dublin
28h 40m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€687Multiple Airlines
Thu, 29 Oct - Wed, 11 Nov
Qatar Airways Logo
07:45 - 10:40DUB  Dublin-USM Ko Samui
19h 55m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
15:35 - 06:00USM  Ko Samui-DUB Dublin
21h 25m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€799Qatar Airways
Thu, 12 Nov - Fri, 13 Nov
Etihad Airways Logo
08:05 - 17:30DUB  Dublin-USM Ko Samui
26h 25m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
20:20 - 18:10USM  Ko Samui-DUB Dublin
28h 50m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€1,142Etihad Airways
Thu, 12 Nov - Thu, 19 Nov
Qatar Airways Logo
07:50 - 15:20SNN  Shannon-USM Ko Samui
24h 30m3 stops London Heathrow Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
17:40 - 11:30USM  Ko Samui-SNN Shannon
24h 50m3 stops Bangkok Suvarnabhumi Doha Hamad Intl London Heathrow
€1,184Qatar Airways
Fri, 6 Nov - Fri, 20 Nov
Qatar Airways Logo
07:40 - 15:20ORK  Cork-USM Ko Samui
24h 40m3 stops London Heathrow Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
07:00 - 23:25USM  Ko Samui-ORK Cork
23h 25m3 stops Bangkok Suvarnabhumi Doha Hamad Intl London Heathrow
€1,239Qatar Airways
Wed, 10 Feb - Sat, 27 Feb
Etihad Airways Logo
08:05 - 15:10DUB  Dublin-USM Ko Samui
24h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
21:30 - 18:10USM  Ko Samui-DUB Dublin
27h 40m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€2,359Etihad Airways
Thu, 14 Jan - Thu, 28 Jan
Etihad Airways Logo
08:05 - 14:55DUB  Dublin-USM Ko Samui
23h 50m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
10:00 - 06:30USM  Ko Samui-DUB Dublin
27h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€2,401Etihad Airways
Booking Insights

Price, demand, and travel trends for Ireland to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Ireland to Ko Samui with more confidence.

What is the cheapest flight to Ko Samui?

Dublin to Ko Samui is the cheapest route at €681 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Ko Samui?

A return flight to Ko Samui costs €1,131 on average, based on data over the past 12 months on KAYAK. Return fares from Cork average €1,103, while Dublin runs a bit higher at €1,131.

What is the cheapest day to fly to Ko Samui?

Friday is the cheapest day to fly to Ko Samui at €962 return on average over the past 12 months on KAYAK. Monday is the most expensive at €1,297.

What is the cheapest month to fly to Ko Samui?

•April is the cheapest month to fly to Ko Samui with an average price of €600 return.
•January (€1,710) and December (€1,644) are the most expensive.
•Based on KAYAK data over the past 12 months.

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

Night flights to Ko Samui are the cheapest at €1,011 return on average. Evening flights are the most expensive at €1,345.

What is a good deal for flights to Ko Samui?

Flights under €940 are considered a good deal. 25% of KAYAK users found return flights to Ko Samui at or below these prices, with the lowest fares from:
•Dublin €926.

Key details for flights to Ko Samui

Low season

October

Cheapest flight

€539
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly (2% more expensive on average)
Flights 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

Your questions about flights to Ko Samui, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Ko Samui is a good deal?

    A good deal on a flight to Ko Samui is around €940 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Your guide to booking Ko Samui flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Ko Samui, recent KAYAK data shows that stronger deals tend to be around €940 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Ko Samui in April. Return fares historically average €600 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to evening to save up to €334 per return. Evening flights to Ko Samui average €1,011 compared to €1,345 for afternoon flights. See the time-of-day chart above for the full breakdown.
  • Once you arrive in Ko Samui, a few great places to start are Chaweng Beach, Lamai Beach, and Chaweng Noi Beach. These are popular with first-time visitors and can give you a good feel for the area.

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.
7.3
Qatar AirwaysOverall score based on 3729 reviews
7.3Food
7.3Comfort
7.9Crew
7.5Boarding
7.3Entertainment
Airline reviews

old aircraft, some of the crew are not polite. I chose my seat to be window and I found it with no window and the seat was not operating...!!!

4.0 OkayMohamed, Sept 2026
Read more Qatar Airways reviews

old aircraft, some of the crew are not polite. I chose my seat to be window and I found it with no window and the seat was not operating...!!!

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).

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

More options for your flight to Ko Samui