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Cheap flights from Dublin to Ko Samui from €448

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Ko Samui departing on 14/12. 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

Cheap return flights

Etihad Airways Logo
09:05 - 08:15DUB-USM
41h 10m2 stops
Etihad Airways Logo
19:00 - 07:10USM-DUB
42h 10m2 stops
€636Etihad Airways
Find Deal
Mon, 6 Oct - Tue, 21 Oct
Etihad Airways Logo
09:05 - 08:15DUB-USM
41h 10m2 stops
Etihad Airways Logo
19:10 - 18:55USM-DUB
29h 45m2 stops
€662Etihad Airways
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Logo
08:45 - 21:05DUB-USM
29h 20m2 stops
Logo
07:00 - 08:05USM-DUB
32h 05m2 stops
€693
Find Deal
Mon, 27 Oct - Mon, 3 Nov
Air France Logo
16:45 - 13:05DUB-USM
37h 20m2 stops
Air France Logo
16:25 - 15:45USM-DUB
30h 20m2 stops
€724Air France
Find Deal
Thu, 6 Nov - Wed, 19 Nov
Logo
09:05 - 10:10DUB-USM
43h 05m2 stops
Logo
20:50 - 07:10USM-DUB
40h 20m2 stops
€738
Find Deal
Mon, 29 Sep - Tue, 14 Oct
Air France Logo
06:00 - 21:05DUB-USM
32h 05m2 stops
Air France Logo
11:40 - 07:50USM-DUB
27h 10m2 stops
€774Air France
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Wed, 26 Nov - Sat, 6 Dec
Qatar Airways Logo
07:45 - 17:30DUB-USM
26h 45m2 stops
Qatar Airways Logo
19:00 - 19:50USM-DUB
31h 50m2 stops
€818Qatar Airways
Find Deal
Tue, 25 Nov - Fri, 5 Dec
Qatar Airways Logo
07:45 - 17:30DUB-USM
26h 45m2 stops
Qatar Airways Logo
13:25 - 06:00USM-DUB
23h 35m2 stops
€826Qatar Airways
Find Deal
Tue, 25 Nov - Mon, 8 Dec
SWISS Logo
18:35 - 10:40DUB-USM
33h 05m2 stops
SWISS Logo
16:25 - 12:05USM-DUB
26h 40m2 stops
€835SWISS
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Thu, 27 Nov - Mon, 8 Dec
SWISS Logo
18:35 - 16:40DUB-USM
39h 05m2 stops
SWISS Logo
10:00 - 13:15USM-DUB
34h 15m3 stops
€1,682SWISS
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Sat, 27 Dec - Sat, 10 Jan

SWISS flights from Dublin to Ko Samui

Our best SWISS deals on Dublin to Ko Samui flight tickets
SWISS
27 Nov
DUB18:35Dublin
33h 05m
2 stops
USM10:40Ko Samui
8 Dec
USM16:25Ko Samui
26h 40m
2 stops
DUB12:05Dublin
€835
Find similar
SWISS
27 Dec
DUB18:35Dublin
39h 05m
2 stops
USM16:40Ko Samui
10 Jan
USM10:00Ko Samui
34h 15m
3 stops
DUB13:15Dublin
€1,682
Find similar
SWISS
20 Dec
DUB12:55Dublin
25h 10m
2 stops
USM21:05Ko Samui
10 Jan
USM10:00Ko Samui
34h 15m
3 stops
DUB13:15Dublin
€2,098
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Etihad Airways flights from Dublin to Ko Samui

Our best Etihad Airways deals on Dublin to Ko Samui flight tickets
Etihad Airways
6 Oct
DUB09:05Dublin
41h 10m
2 stops
USM08:15Ko Samui
21 Oct
USM19:00Ko Samui
42h 10m
2 stops
DUB07:10Dublin
€636
Find similar
Etihad Airways
13 Oct
DUB09:05Dublin
41h 10m
2 stops
USM08:15Ko Samui
20 Oct
USM19:10Ko Samui
29h 45m
2 stops
DUB18:55Dublin
€662
Find similar
Etihad Airways
28 Oct
DUB19:50Dublin
31h 50m
2 stops
USM10:40Ko Samui
4 Nov
USM20:20Ko Samui
41h 05m
2 stops
DUB06:25Dublin
€771
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 14 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

Mon 6/10

09:05-08:15

2 stops41h 10m

Ko Samui

Tue 21/10

19:00-07:10

2 stops42h 10m

€636

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 13/10

09:05-08:15

2 stops41h 10m

Ko Samui

Mon 20/10

19:10-18:55

2 stops29h 45m

€662

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 27/10

08:45-21:05

2 stops29h 20m

Ko Samui

Mon 3/11

07:00-08:05

2 stops32h 05m

€693

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 6/11

16:45-13:05

2 stops37h 20m

Ko Samui

Wed 19/11

16:25-15:45

2 stops30h 20m

€724

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 29/9

09:05-10:10

2 stops43h 05m

Ko Samui

Tue 14/10

20:50-07:10

2 stops40h 20m

€738

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Wed 26/11

06:00-21:05

2 stops32h 05m

Ko Samui

Sat 6/12

11:40-07:50

2 stops27h 10m

€774

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 25/11

07:45-17:30

2 stops26h 45m

Ko Samui

Fri 5/12

19:00-19:50

2 stops31h 50m

€818

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 25/11

07:45-17:30

2 stops26h 45m

Ko Samui

Mon 8/12

13:25-06:00

2 stops23h 35m

€826

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 27/11

18:35-10:40

2 stops33h 05m

Ko Samui

Mon 8/12

16:25-12:05

2 stops26h 40m

€835

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 27/12

18:35-16:40

2 stops39h 05m

Ko Samui

Sat 10/1

10:00-13:15

3 stops34h 15m

€1,682

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 €811.

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 €571. Flights from Dublin to Ko Samui on a Sunday will generally be more expensive and average around €735. 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 €531. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €598.

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 19h 30m 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 €527Free CancellationRating
7.4
3,624 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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