Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ireland to Ko Samui
Cheap return flights
Cheap one-way flights
See travel insights to Ko Samui from
Ko Samui flights insights and trends
Explore insights for your Ko Samui flight to craft the best travel plan
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 Ireland during September instead. Flights to Ko Samui in September, while not as cheap as those in November, still average around €838.
What is the cheapest day to depart on your flight to Ko Samui?
The cheapest day to depart from Ireland to Ko Samui is on a Thursday when prices can be found for as low as €590. Flights from Ireland to Ko Samui on a Sunday will generally be more expensive and average around €759. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
Cheapest flights to Ko Samui
Find the cheapest flights to Ko Samui from your nearest city or airport
| CHEAPEST MONTH TO FLY TO KO SAMUI FROM DUBLIN | November | 24% cheaper | Flying from Dublin to Ko Samui costs on average just €804 in November |
| MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM DUBLIN | April | 30% more expensive | It costs about €1,369 for flights to Ko Samui from Dublin in April |
| MOST POPULAR MONTH TO FLY TO KO SAMUI FROM DUBLIN | December | 366% more users visited | More momondo users searched in flights to Ko Samui from Dublin in December than any other month |
Cheap Ko Samui flight deals and tips
Summary info about Ko Samui flight prices, duration and airlines
Best One-Way Price | €544 |
|---|---|
Best Round-Trip Price | €687 |
Fastest flight time | 25h 10m |
Popular in | April |
Frequently asked questions about flying to Ko Samui
What is there to do in Ko Samui when it’s raining?
When planning your flight to Ko Samui, it is important to be aware that some months are not as ideal as others. Specifically, the months of January, May, or October could carry a higher chance of rain, as Ko Samui sees up to 5.1 inches (130 mm) or more. There are still things to do in Ko Samui even when it's raining, but be aware that rain is highly probable in the area. Shopping centres like Fishermans Village are very popular destinations for those visiting the Ko Samui area. Fishermans Village is a great place to go if you’re looking to spend some time inside.
When is the best time to plan a beach trip to Ko Samui?
Beaches like Chaweng Beach are most often visited during February, March, or April, as the weather is usually above 70 degrees Fahrenheit (21°C) with a low chance of rain. For those looking to visit another beach nearby, Lamai Beach is a great option in the Ko Samui area.
When did momondo last update prices for flights to Ko Samui Airport?
Prices for flights to Ko Samui Airport are refreshed on a daily basis.
How many operators does momondo search for flights to Ko Samui Airport?
As of April 2025, there are 3 operators available to choose from for flights to Ko Samui Airport.
How old do you have to be to fly to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Travelling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal to Ko Samui?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Ko Samui. Millions of users trust and use momondo every year so you are in good company.
Can I find flights to Ko Samui with flexible booking policies on momondo?
All flight searches to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights to Ko Samui?
Once all potential Ko Samui flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.
I’m not ready to book a flight to Ko Samui right now. Can momondo alert me if prices change?
Price alerts on flights to Ko Samui 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.