Cheap flights from Dublin to Koh Samui

from as little as £882

22 nights in Koh Samui, departing Dublin on 08 / Jan / 2025 with British Airways (price found 13 hours ago)

Subject to availability, prices correct of the last 24 hours
Koh Samui

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The Dublin / Koh Samui route

All 10220 km of it

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Koh Samui flight facts

What you need to know

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Koh Samui

08 / Jan / 2025 is currently the lowest priced day of the year to fly the Dublin/Koh Samui route. There are around 189 flights on any given week from the UK to Koh Samui and the cheapest month to fly right now is January.

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Min / Max Temperature (°C)

24 °C


28 °C


33 °C

Rainfall (mm)

33 mm


159.2 mm


527 mm

Key facts about Koh Samui

How to get cheap flights from Dublin to Koh Samui

Tips and advice from our flight experts

We've compared all 189 flights that go to or via Koh Samui every week, to find the best deal for you. KLM usually has the cheapest flights from Dublin to Koh Samui, so keep an eye out for them in your search results. If they’re not the cheapest option, try searching by month to compare costs throughout the week.

We scan thousands of airfares from hundreds of airlines across the globe. We've found that seven airlines operate the 10220 km flight from Dublin to Koh Samui. Flights during peak season tend to be the most expensive – so if you want to go during that time, it's best to book early. Or you could try to get a last-minute flight deal.

To sort cheap flights to Koh Samui, it's best to start searching for flights by month, as this will show you when prices are at their lowest. Keep an eye on KLM too, as they're the most popular airline for flying from Dublin to Koh Samui.

Flights from Dublin to Koh Samui normally take 19 hrs 30 mins. Make sure you check what refreshments or meals are included, so you can plan your journey. Before you book, why not check out our holiday package and car hire options? We have some hotels close to the airport – handy if you're arriving late at night, or flying back very early.

Other popular destinations near Koh Samui

Where other people are flying to

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