Cheap flights from Dublin to Ko Samui from €419

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 1/2. 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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0 bags
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Find the cheapest flights from Dublin to Ko Samui

Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
10:40 - 17:45DUB-USM
25h 05m2 stops
Lufthansa Logo
16:25 - 09:55USM-DUB
23h 30m2 stops
€688Lufthansa
Find Deal
Thu, 7 May - Mon, 11 May
Lufthansa Logo
10:40 - 17:45DUB-USM
25h 05m2 stops
Lufthansa Logo
16:25 - 09:55USM-DUB
23h 30m2 stops
€689Lufthansa
Find Deal
Thu, 7 May - Mon, 11 May
SWISS Logo
13:00 - 12:45DUB-USM
17h 45m2 stops
SWISS Logo
10:05 - 12:10USM-DUB
32h 05m2 stops
€693SWISS
Find Deal
Tue, 5 May - Tue, 19 May
KLM Logo
13:25 - 12:45DUB-USM
17h 20m2 stops
KLM Logo
07:00 - 22:25USM-DUB
21h 25m2 stops
€705KLM
Find Deal
Mon, 4 May - Tue, 19 May
KLM Logo
17:20 - 18:15DUB-USM
18h 55m2 stops
KLM Logo
08:00 - 22:25USM-DUB
20h 25m2 stops
€715KLM
Find Deal
Tue, 5 May - Wed, 20 May
Multiple Airlines Logo
06:30 - 08:00DUB-USM
42h 30m3 stops
Multiple Airlines Logo
11:10 - 15:00USM-DUB
34h 50m3 stops
€722Multiple Airlines
Find Deal
Sun, 18 Jan - Mon, 2 Feb
Etihad Airways Logo
20:25 - 08:15DUB-USM
29h 50m2 stops
Etihad Airways Logo
17:25 - 07:10USM-DUB
43h 45m2 stops
€738Etihad Airways
Find Deal
Thu, 7 May - Mon, 18 May
Etihad Airways Logo
20:25 - 21:35DUB-USM
19h 10m2 stops
Etihad Airways Logo
20:50 - 18:55USM-DUB
28h 05m2 stops
€749Etihad Airways
Find Deal
Sat, 2 May - Mon, 18 May
Etihad Airways Logo
20:25 - 21:35DUB-USM
19h 10m2 stops
Etihad Airways Logo
20:50 - 18:55USM-DUB
28h 05m2 stops
€754Etihad Airways
Find Deal
Mon, 4 May - Fri, 22 May
Etihad Airways Logo
20:25 - 21:35DUB-USM
19h 10m2 stops
Etihad Airways Logo
17:55 - 18:55USM-DUB
31h 00m2 stops
€756Etihad Airways
Find Deal
Thu, 7 May - Wed, 20 May

Lufthansa flights from Dublin to Ko Samui

Our best Lufthansa deals on Dublin to Ko Samui flight tickets
Lufthansa
7 May
DUB10:40Dublin
25h 05m
2 stops
USM17:45Ko Samui
11 May
USM16:25Ko Samui
23h 30m
2 stops
DUB09:55Dublin
Lufthansa
7 May
DUB10:40Dublin
25h 05m
2 stops
USM17:45Ko Samui
11 May
USM16:25Ko Samui
23h 30m
2 stops
DUB09:55Dublin

SWISS flights from Dublin to Ko Samui

Our best SWISS deals on Dublin to Ko Samui flight tickets
SWISS
5 May
DUB13:00Dublin
17h 45m
2 stops
USM12:45Ko Samui
19 May
USM10:05Ko Samui
32h 05m
2 stops
DUB12:10Dublin
SWISS
18 Jan
DUB14:00Dublin
24h 05m
3 stops
USM21:05Ko Samui
2 Feb
USM09:20Ko Samui
33h 45m
2 stops
DUB12:05Dublin
€1,167
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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 24 November 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

Thu 7/5

10:40-17:45

2 stops25h 05m

Ko Samui

Mon 11/5

16:25-09:55

2 stops23h 30m

€688

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 7/5

10:40-17:45

2 stops25h 05m

Ko Samui

Mon 11/5

16:25-09:55

2 stops23h 30m

€689

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 5/5

13:00-12:45

2 stops17h 45m

Ko Samui

Tue 19/5

10:05-12:10

2 stops32h 05m

€693

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 4/5

13:25-12:45

2 stops17h 20m

Ko Samui

Tue 19/5

07:00-22:25

2 stops21h 25m

€705

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 5/5

17:20-18:15

2 stops18h 55m

Ko Samui

Wed 20/5

08:00-22:25

2 stops20h 25m

€715

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sun 18/1

06:30-08:00

3 stops42h 30m

Ko Samui

Mon 2/2

11:10-15:00

3 stops34h 50m

€722

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 7/5

20:25-08:15

2 stops29h 50m

Ko Samui

Mon 18/5

17:25-07:10

2 stops43h 45m

€738

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 2/5

20:25-21:35

2 stops19h 10m

Ko Samui

Mon 18/5

20:50-18:55

2 stops28h 05m

€749

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 4/5

20:25-21:35

2 stops19h 10m

Ko Samui

Fri 22/5

20:50-18:55

2 stops28h 05m

€754

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 7/5

20:25-21:35

2 stops19h 10m

Ko Samui

Wed 20/5

17:55-18:55

2 stops31h 00m

€756

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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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 April, then book flights to Ko Samui from Dublin during March instead. Flights to Ko Samui in March, while not as cheap as those in April, still average around €834.

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 €582. Flights from Dublin to Ko Samui on a Sunday will generally be more expensive and average around €750. 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 €541. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €609.

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.
  • 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 20m 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 €537Free CancellationRating
7.4
3,665 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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1 adult
Wed 24/12
Wed 31/12