USM

€388 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 flight
€722
Typical prices: €937-€1,468
Multiple Airlines
Fri 30/11Thu 13/12
DUB - USM • 2 stops
Cheapest one-way flight
€388
Typical prices: €706-€1,030
Multiple Airlines
Thu 6/12
DUB - USM • 3 stops
Top airlines
Best reviews • 7.8 score
Airline reviews
Airline reviews
Top routes
Cheapest • 29% 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

Mon, 30 Nov - Sun, 13 Dec
Multiple Airlines Logo
09:00 - 08:25Dublin  Dublin-Ko Samui Ko Samui
40h 25m2 stops Shanghai Pu Dong Phuket City
Multiple Airlines Logo
11:10 - 06:15Ko Samui  Ko Samui-Dublin Dublin
26h 05m2 stops Phuket City Shanghai Pu Dong
€722Multiple Airlines
3+ days ago
Mon, 30 Nov - Sun, 13 Dec
Multiple Airlines Logo
07:10 - 18:25Dublin  Dublin-Ko Samui Ko Samui
28h 15m3 stops Brussels Bruxelles-National Beijing Capital Phuket City
Multiple Airlines Logo
20:20 - 19:45Ko Samui  Ko Samui-Dublin Dublin
30h 25m2 stops Bangkok Suvarnabhumi Manchester
€738Multiple Airlines
3+ days ago
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
08:05 - 18:25Dublin  Dublin-Ko Samui Ko Samui
27h 20m2 stops Abu Dhabi Zayed Intl Phuket City
Multiple Airlines Logo
07:00 - 06:30Ko Samui  Ko Samui-Dublin Dublin
30h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€766Multiple Airlines
10 hours ago
Mon, 30 Nov - Sun, 13 Dec
Multiple Airlines Logo
07:10 - 18:25Dublin  Dublin-Ko Samui Ko Samui
28h 15m3 stops Brussels Bruxelles-National Beijing Capital Phuket City
Multiple Airlines Logo
17:00 - 12:05Ko Samui  Ko Samui-Dublin Dublin
26h 05m3 stops Krabi Kastrup Copenhagen Amsterdam Schiphol
€787Multiple Airlines
3+ days ago
Mon, 9 Nov - Sun, 22 Nov
Qatar Airways Logo
14:05 - 10:40Dublin  Dublin-Ko Samui Ko Samui
37h 35m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
19:00 - 12:35Ko Samui  Ko Samui-Dublin Dublin
24h 35m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€860Qatar Airways
16 hours ago
Fri, 12 Feb - Sat, 20 Feb
Qatar Airways Logo
14:05 - 16:00Dublin  Dublin-Ko Samui Ko Samui
18h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
20:40 - 12:35Ko Samui  Ko Samui-Dublin Dublin
22h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€866Qatar Airways
1 day ago
Fri, 6 Nov - Tue, 10 Nov
Qatar Airways Logo
07:45 - 11:55Dublin  Dublin-Ko Samui Ko Samui
21h 10m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
12:30 - 06:00Ko Samui  Ko Samui-Dublin Dublin
24h 30m2 stops Phuket City Doha Hamad Intl
€983Qatar Airways
3+ days ago
Thu, 14 Jan - Thu, 28 Jan
Etihad Airways Logo
08:05 - 15:10Dublin  Dublin-Ko Samui Ko Samui
24h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
10:00 - 06:30Ko Samui  Ko Samui-Dublin Dublin
27h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€2,580Etihad Airways
1 day ago
Thu, 14 Jan - Thu, 28 Jan
Etihad Airways Logo
08:05 - 15:10Dublin  Dublin-Ko Samui Ko Samui
24h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
10:00 - 06:30Ko Samui  Ko Samui-Dublin Dublin
27h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€2,584Etihad Airways
3+ days ago
Thu, 14 Jan - Thu, 28 Jan
Etihad Airways Logo
08:05 - 15:10Dublin  Dublin-Ko Samui Ko Samui
24h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
10:00 - 06:30Ko Samui  Ko Samui-Dublin Dublin
27h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€2,585Etihad Airways
3+ days ago
Booking Insights

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

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

What is the cheapest flight to Ko Samui?

Dublin to Ko Samui is the cheapest route at €722 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?

On average, a return flight from Ireland to Ko Samui costs €1,148, based on KAYAK data over the past 12 months. Return fares from Dublin average €1,127, while Cork runs a bit higher at €2,066.

What is the cheapest day to fly to Ko Samui?

Thursday is the cheapest day to fly to Ko Samui at €940 return on average over the past 12 months on KAYAK. Monday is the most expensive at €1,452.

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 €610 return.
•December (€1,803) and October (€1,608) 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?

Morning flights to Ko Samui are the cheapest at €1,172 return on average. Evening flights are the most expensive at €1,223.

What is a good deal for flights to Ko Samui?

Flights under €937 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 €918.

Key details for flights to Ko Samui

Low season

October

Cheapest flight

€388
Beat the crowds with an average 66% drop in travellers.
The most popular month to fly with an average 100% increase in travellers.
One-way 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

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 €937 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, a good return fare is around €937. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Ko Samui in April. Return fares historically average €610, making April the cheapest month to travel based on KAYAK data from 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 morning to save up to €51 on a return flight. Morning flights to Ko Samui average €1,172 compared to €1,223 for afternoon flights.
  • 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 3707 reviews
7.5Boarding
7.9Crew
7.3Entertainment
7.3Food
7.3Comfort
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