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Cheap flights from Dublin to Ko Samui

DUB — USM
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Dublin to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 September 2025.

Popular in

December

Cheapest in

November

Average price

£714
Highest demand for flights based on searches. 7% potential increase in price (£54 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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.
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

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

Currently, August is the cheapest month in which you can book a flight from Dublin to Ko Samui (average of £1,019). Flying from Dublin to Ko Samui in December is currently the most expensive (average of £1,669). 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.

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

Find hourly flight availability from Dublin to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Dublin to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 13% versus a flight in the afternoon.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 12 September 2025.
Get a feel of what it's like to fly with Qatar 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.
Qatar Airways
7.4
Good
3,624 reviews
Check prices

Crew

7.9

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Lisa,Oct 2024

MIA - DOH

Boarding a bit chaotic and seats were snug but crew were wonderful
Qatar Airways
7.4
Good
3,624 reviews
Qatar Airways
7.4
Good
3,624 reviews
Check prices

Crew

7.9

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Lisa,Oct 2024

MIA - DOH

Boarding a bit chaotic and seats were snug but crew were wonderful

Related info for your journey

Find useful and relevant information for your journey from Dublin to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Flying on Qatar Airways is currently your cheapest option to Ko Samui, with prices starting at £687. Users have found that Qatar Airways is 19% 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, August is the cheapest month in which you can book a flight from Dublin to Ko Samui (average of £1,019). Flying from Dublin to Ko Samui in December is currently the most expensive (average of £1,669). 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

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

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Alternative routes for Dublin to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dublin to Ko Samui

Discover the top airline that operate flights from Dublin to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£687Average£806FlexibilityNo cancel feeOn-time68%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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