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Cheap flights from Dublin to Ko Samui from €737

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Ko Samui departing on 24/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Dublin to Ko Samui (DUB-USM)

Cheap return flights

Logo
13:25 - 18:55DUB-USM
22h 30m2 stops
Logo
11:40 - 07:50USM-DUB
27h 10m2 stops
€737
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Tue, 24 Feb - Tue, 10 Mar
Logo
09:10 - 18:15DUB-USM
27h 05m2 stops
Logo
08:00 - 22:25USM-DUB
20h 25m2 stops
€746
Find Deal
Thu, 18 Sep - Wed, 1 Oct
Air France Logo
06:00 - 21:10DUB-USM
33h 10m2 stops
Air France Logo
10:55 - 08:15USM-DUB
27h 20m2 stops
€751Air France
Find Deal
Thu, 2 Oct - Thu, 16 Oct
Lufthansa Logo
17:55 - 21:05DUB-USM
20h 10m2 stops
Lufthansa Logo
16:25 - 08:35USM-DUB
23h 10m2 stops
€779Lufthansa
Find Deal
Mon, 12 Jan - Thu, 22 Jan
Logo
08:15 - 18:15DUB-USM
28h 00m2 stops
Logo
15:25 - 06:45USM-DUB
21h 20m2 stops
€783
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Thu, 11 Sep - Wed, 24 Sep
Logo
16:50 - 20:25DUB-USM
20h 35m2 stops
Logo
20:20 - 09:40USM-DUB
44h 20m2 stops
€1,462
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Sat, 27 Dec - Sat, 10 Jan
Finnair Logo
18:00 - 09:20DUB-USM
33h 20m2 stops
Finnair Logo
18:45 - 09:00USM-DUB
44h 15m2 stops
€1,720Finnair
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Thu, 11 Sep - Wed, 24 Sep
SWISS Logo
12:55 - 15:35DUB-USM
19h 40m2 stops
SWISS Logo
16:25 - 13:15USM-DUB
27h 50m3 stops
€1,949SWISS
Find Deal
Sat, 27 Dec - Sat, 10 Jan
Logo
18:40 - 21:10DUB-USM
20h 30m2 stops
Logo
09:15 - 14:15USM-DUB
35h 00m3 stops
€3,266
Find Deal
Thu, 18 Sep - Wed, 1 Oct
SWISS Logo
12:55 - 21:05DUB-USM
73h 10m3 stops
SWISS Logo
16:25 - 12:00USM-DUB
26h 35m2 stops
€3,495SWISS
Find Deal
Tue, 24 Feb - Tue, 10 Mar

SWISS flights from Dublin to Ko Samui

Our best SWISS deals on Dublin to Ko Samui flight tickets
SWISS
27 Dec
DUB12:55Dublin
19h 40m
2 stops
USM15:35Ko Samui
10 Jan
USM16:25Ko Samui
27h 50m
3 stops
DUB13:15Dublin
€1,949
Find similar
SWISS
24 Feb
DUB12:55Dublin
73h 10m
3 stops
USM21:05Ko Samui
10 Mar
USM16:25Ko Samui
26h 35m
2 stops
DUB12:00Dublin
€3,495
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 1 September 2025.
Use the filters below to find and compare flights from Dublin to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 24/2

13:25-18:55

2 stops22h 30m

Ko Samui

Tue 10/3

11:40-07:50

2 stops27h 10m

€737

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 18/9

09:10-18:15

2 stops27h 05m

Ko Samui

Wed 1/10

08:00-22:25

2 stops20h 25m

€746

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 2/10

06:00-21:10

2 stops33h 10m

Ko Samui

Thu 16/10

10:55-08:15

2 stops27h 20m

€751

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 12/1

17:55-21:05

2 stops20h 10m

Ko Samui

Thu 22/1

16:25-08:35

2 stops23h 10m

€779

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 11/9

08:15-18:15

2 stops28h 00m

Ko Samui

Wed 24/9

15:25-06:45

2 stops21h 20m

€783

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 27/12

16:50-20:25

2 stops20h 35m

Ko Samui

Sat 10/1

20:20-09:40

2 stops44h 20m

€1,462

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 11/9

18:00-09:20

2 stops33h 20m

Ko Samui

Wed 24/9

18:45-09:00

2 stops44h 15m

€1,720

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 27/12

12:55-15:35

2 stops19h 40m

Ko Samui

Sat 10/1

16:25-13:15

3 stops27h 50m

€1,949

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 18/9

18:40-21:10

2 stops20h 30m

Ko Samui

Wed 1/10

09:15-14:15

3 stops35h 00m

€3,266

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 24/2

12:55-21:05

3 stops73h 10m

Ko Samui

Tue 10/3

16:25-12:00

2 stops26h 35m

€3,495

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Ko Samui from

How to get the cheapest flight ticket from Dublin to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dublin and Ko Samui?

What is the cheapest month to fly to Ko Samui?

If you aren’t able to travel during the month of November, then book flights to Ko Samui from Dublin during April instead. Flights to Ko Samui in April, while not as cheap as those in November, still average around €814.

What is the cheapest day to depart on your flight to Ko Samui?

The cheapest day to depart from Dublin to Ko Samui is on a Thursday when prices can be found for as low as €574. Flights from Dublin to Ko Samui on a Sunday will generally be more expensive and average around €738. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest Dublin to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as €533. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €600.

When to book flights from Dublin to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Ko Samui (DUB to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Ko Samui

Direct flights

None
There are no direct flights from Dublin to Ko Samui. There are no popular flight routes from Dublin to Ko Samui.
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  • How far is Dublin to Ko Samui by plane?

    A flight from Dublin to Ko Samui will travel around 10208.6 km. Typically, this will take 17h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Dublin Airport to Ko Samui Airport?

    Prices for flights from Dublin Airport to Ko Samui Airport were last updated today.

  • How many operators does momondo search for flights from Dublin Airport to Ko Samui Airport?

  • How old do you have to be to fly from Dublin Airport to Ko Samui Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Dublin to Ko Samui?

Best airlines flying from Dublin to Ko Samui

Compare and see reviews for airlines that fly from Dublin to Ko Samui with momondo
Airline
Rating
Free Cancellation
Price
Qatar AirwaysPriceFrom €529Free CancellationRating
7.4
3,615 reviews
Search Qatar Airways flights

Travelling to a place near Ko Samui?

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

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to Ko Samui?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Ko Samui for you.

Can I find flights from Dublin to Ko Samui with flexible booking policies on momondo?

Flights from Dublin to Ko Samui with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Dublin to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Dublin to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from Dublin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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