What is the most punctual flight time for Dublin to Ko Samui flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

How often are flights from Dublin to Ko Samui delayed?

About 11% of weekly flights between Dublin and Ko Samui have experienced delays in the past year, with the average delay time being 138 minutes.

Which airline has the best punctuality record on Dublin to Ko Samui flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 10% of flights being delayed.

How long is the flight from Dublin to Ko Samui?

Departing from Dublin to Ko Samui will take you 24h 25m. The distance from Dublin to Ko Samui is about 6340 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What is the cheapest airline to fly from Dublin to Ko Samui round-trip?

Flying on Etihad Airways is currently your cheapest option to Ko Samui, with prices starting at £671. Users have found that Etihad Airways is 25% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What is the cheapest time of day to fly from DUB to USM?

When flying from Dublin to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Dublin to Ko Samui that include hotel bookings?

Yes. In addition to deals on Dublin to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Dublin to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Ko Samui.

Can I find deals for business class flights from Dublin to Ko Samui?

Yes. Cheapflights offers flight deals from Dublin to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£635+ Cheap Flights from Dublin to Ko Samui

Cheap flight deals from Dublin to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Dublin to Ko Samui
Explore the most affordable flight options available from Dublin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Thu 12/1108:05 -

2 stops26h 25m

Fri 13/1120:30 -

2 stops28h 40m

Deal found 25/9£635

Thu 29/1010:50 -

2 stops24h 25m

Wed 11/1119:00 -

2 stops24h 15m

Deal found 25/9£713

Fri 6/1115:30 -

2 stops19h 45m

Tue 10/1116:25 -

2 stops25h 50m

Deal found 24/9£716

Thu 29/1020:50 -

2 stops35h 20m

Wed 11/1118:15 -

2 stops24h 05m

Deal found 24/9£786

Mon 30/1113:10 -

2 stops25h 10m

Sun 28/219:10 -

2 stops23h 10m

Deal found 26/9£830

Mon 26/1016:35 -

2 stops21h 30m

Mon 9/1120:20 -

2 stops20h 15m

Deal found 28/9£858

Mon 26/1018:35 -

2 stops37h 45m

Mon 9/1116:25 -

3 stops55h 20m

Deal found 27/9£931

Thu 12/1108:05 -

2 stops26h 25m

Fri 13/1120:20 -

2 stops28h 50m

Deal found 28/9£980

Find flight deals from Dublin to Ko Samui

Round-trip from	£635
Popular in	December
Cheapest in	April
Average price	£733

12/11-13/11
4 total stops
55h 05m total
Dublin to Ko Samui

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£115 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£46 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Thu 29/10

10:50-18:15

2 stops24h 25m

Ko Samui

Wed 11/11

19:00-12:15

2 stops24h 15m

£713

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Fri 6/11

15:30-18:15

2 stops19h 45m

Ko Samui

Tue 10/11

16:25-11:15

2 stops25h 50m

£717

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Thu 29/10

20:50-15:10

2 stops35h 20m

Ko Samui

Wed 11/11

18:15-11:20

2 stops24h 05m

£786

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Mon 30/11

13:10-21:20

2 stops25h 10m

Ko Samui

Sun 28/2

19:10-11:20

2 stops23h 10m

£830

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Tue 16/3

14:15-21:05

2 stops23h 50m

Ko Samui

Mon 29/3

16:25-09:40

2 stops23h 15m

£834

Fastest return journey

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Mon 26/10

16:35-21:05

2 stops21h 30m

Ko Samui

Mon 9/11

20:20-09:35

2 stops20h 15m

£858

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Mon 26/10

18:35-15:20

2 stops37h 45m

Ko Samui

Mon 9/11

16:25-16:45

3 stops55h 20m

£931

DublinKo Samui

DUB Dublin - USM Ko Samui

DUBUSM

Dublin

Wed 17/3

12:05-18:15

2 stops23h 10m

Ko Samui

Sat 3/4

13:30-10:15

2 stops26h 45m

£982

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Sorted by cheapest first

Best time to book a flight from Dublin to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Dublin with our price prediction graph.

DUB-USM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Ko Samui

Prices

Delays

What is the cheapest month to book a flight from Dublin to Ko Samui?

Currently, April is the cheapest month in which you can book a flight from Dublin to Ko Samui (average of £621). Flying from Dublin to Ko Samui in December is currently the most expensive (average of £1,553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Etihad Airways from Dublin to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Etihad Airways

7.3

Good

1,540 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

TRV - AUH

I liked the choice of food. The passenger next to me was continuously asking for wine to drink and thus was drunk which was uncomfortable.

Etihad Airways

7.3

Good

1,540 reviews

Etihad Airways

7.3

Good

1,540 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

TRV - AUH

I liked the choice of food. The passenger next to me was continuously asking for wine to drink and thus was drunk which was uncomfortable.

Related info for your journey

How long is the flight from Dublin to Ko Samui?
Departing from Dublin to Ko Samui will take you 24h 25m. The distance from Dublin to Ko Samui is about 6340 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What is the cheapest airline to fly from Dublin to Ko Samui round-trip?
Flying on Etihad Airways is currently your cheapest option to Ko Samui, with prices starting at £671. Users have found that Etihad Airways is 25% cheaper than the other options available to this destination.
Can I find deals for flights from Dublin to Ko Samui that include hotel bookings?
Yes. In addition to deals on Dublin to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dublin to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Ko Samui.
Can I find deals for business class flights from Dublin to Ko Samui?
Yes. Cheapflights offers flight deals from Dublin to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Dublin to Ko Samui?
Currently, April is the cheapest month in which you can book a flight from Dublin to Ko Samui (average of £621). Flying from Dublin to Ko Samui in December is currently the most expensive (average of £1,553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Dublin to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Etihad Airways	Cheapest£671	Average£769	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights

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How does Cheapflights help users find flights from Dublin to Ko Samui?

When you search for this flight from Dublin to Ko Samui, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Ko Samui?

Cheapflights simply makes it quick and affordable to book flights from Dublin to Ko Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dublin to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to Ko Samui become cheaper?

Of course! You can now track prices for flights from Dublin to Ko Samui and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Dublin to Ko Samui from £635

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to Ko Samui

Cheapest flights from Dublin to Ko SamuiExplore the most affordable flight options available from Dublin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Explore the most affordable flight options available from Dublin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Dublin to Ko SamuiDiscover carefully curated flight deals from Dublin to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Discover carefully curated flight deals from Dublin to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Dublin to Ko SamuiDiscover last-minute flight deals from Dublin to Ko Samui. Data last updated 29 September 2026 and is based on user searches.

Discover last-minute flight deals from Dublin to Ko Samui. Data last updated 29 September 2026 and is based on user searches.

Find flight deals from Dublin to Ko Samui

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Use the filters below to find and compare flights from Dublin to Ko Samui that are best for you.

Best time to book a flight from Dublin to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Dublin with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Dublin to Ko Samui?

How often are flights from Dublin to Ko Samui delayed?

About 11% of weekly flights between Dublin and Ko Samui have experienced delays in the past year, with the average delay time being 138 minutes.

What is the most punctual flight time for Dublin to Ko Samui flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Dublin to Ko Samui flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 10% of flights being delayed.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Etihad Airways from Dublin to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Dublin to Ko Samui?

What is the cheapest airline to fly from Dublin to Ko Samui round-trip?

Can I find deals for flights from Dublin to Ko Samui that include hotel bookings?

How can I find direct flights from Dublin to Ko Samui?

Can I find deals for business class flights from Dublin to Ko Samui?

What is the cheapest month to book a flight from Dublin to Ko Samui?

Travelling to a place near Ko Samui?

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Alternative routes for Dublin to Ko Samui

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Complete your trip

Complete your trip to Ko Samui by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Thailand

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Search flights from Dublin to Ko Samui by cabin class

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Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 September 2026.

Dublin and Ko Samui flights

Browse other Dublin and Ko Samui flight options. Last updated on 29 September 2026.

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How does Cheapflights help users find flights from Dublin to Ko Samui?

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Can Cheapflights find flights from Dublin to Ko Samui with no change fees?

Can Cheapflights notify me if prices for flights from Dublin to Ko Samui become cheaper?

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Cheapest flights from Dublin to Ko Samui
Explore the most affordable flight options available from Dublin to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Dublin to Ko Samui
Discover carefully curated flight deals from Dublin to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Dublin to Ko Samui
Discover last-minute flight deals from Dublin to Ko Samui. Data last updated 29 September 2026 and is based on user searches.