Question 1

Why should I use momondo to find a flight deal to Ko Samui?

Accepted Answer

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.

Question 2

Can I find flights to Ko Samui with flexible booking policies on momondo?

Accepted Answer

All flight searches to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.

Question 3

How can momondo help me find flights to Ko Samui?

Accepted Answer

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.

Question 4

I’m not ready to book a flight to Ko Samui right now. Can momondo alert me if prices change?

Accepted Answer

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.

Question 5

What is there to do in Ko Samui when it’s raining?

Accepted Answer

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.

Question 6

When is the best time to plan a beach trip to Ko Samui?

Accepted Answer

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, Bophut Beach is a great option in the Ko Samui area.

Question 7

Is there an alternative airport near Ko Samui?

Accepted Answer

Surat Thani Airport, Nakhon Si Thammarat Airport or Chumphon Airport can be an alternative airport used for travel to Ko Samui.

Question 8

Which airlines fly to Ko Samui?

Accepted Answer

When flying to Ko Samui from Ireland, momondo travellers will most often fly with that one popular airline: Qatar Airways. Depending on what airport in Ireland you fly from, you may be able to find flights with that popular airline.

Question 9

Qatar Airways Flights to Ko Samui

Accepted Answer

140 Qatar Airways flights head to Ko Samui on average each week. Most will be flying from Bangkok Suvarnabhumi to Ko Samui, the most popular route that Qatar Airways operates to Ko Samui. Prices vary based on when and where you fly from - the cheapest Qatar Airways flight to Ko Samui found in the past 3 days on momondo was €527, departing from Dublin. Qatar Airways is the most popular choice on momondo for this route and has been scored 7.4/10 by 3,679 of our users.

Question 10

When did momondo last update prices for flights to Ko Samui Airport?

Accepted Answer

Prices for flights to Ko Samui Airport are refreshed on a daily basis.

Question 11

How many operators does momondo search for flights to Ko Samui Airport?

Accepted Answer

As of December 2025, there are 2 operators available to choose from for flights to Ko Samui Airport.

Question 12

How old do you have to be to fly to Ko Samui Airport?

Accepted Answer

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.

Question 13

What documentation or ID do you need to fly to Ko Samui Airport?

Accepted Answer

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.

Question 14

What is the cheapest month to fly to Ko Samui?

Accepted Answer

If you aren’t able to travel during the month of April, then book flights to Ko Samui from Ireland during September instead. Flights to Ko Samui in September, while not as cheap as those in April, still average around €844.

Question 15

What is the cheapest day to depart on your flight to Ko Samui?

Accepted Answer

The cheapest day to depart from Ireland to Ko Samui is on a Thursday when prices can be found for as low as €571. Flights from Ireland to Ko Samui on a Sunday will generally be more expensive and average around €735. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 16

How long does it take to fly to Ko Samui?

Accepted Answer

If you’re flying from a popular airport in Ireland, such as Dublin or Cork, and flying into Ko Samui, then you can expect flight times to average 17h 20m and 22h 55m, respectively.

Question 17

What is the cheapest time of day to depart on your flight to Ko Samui?

Accepted Answer

Our data shows that the cheapest Ireland 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 €531. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €598.

CHEAPEST MONTH TO FLY TO KO SAMUI FROM DUBLIN	April	24% cheaper	Flying from Dublin to Ko Samui costs on average just €811 in April
MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM DUBLIN	December	64% more expensive	It costs about €1,754 for flights to Ko Samui from Dublin in December
MOST POPULAR MONTH TO FLY TO KO SAMUI FROM DUBLIN	July	350% more users visited	More momondo users searched in flights to Ko Samui from Dublin in July than any other month

Best One-Way Price	€818
Best Round-Trip Price	€754
Fastest flight time	55h 00m
Popular in	December

€754 Cheap flights to Ko Samui

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Ko Samui departing on 14/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to Ko Samui

Cheap return flights

Cheap one-way flights

momondo Fare Finder

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

See travel insights to Ko Samui from

Ko Samui flights insights and trends

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 Ireland during September instead. Flights to Ko Samui in September, while not as cheap as those in April, still average around €844.

What is the cheapest day to depart on your flight to Ko Samui?

What is the cheapest time of day to depart on your flight to Ko Samui?

How long does it take to fly to Ko Samui?

If you’re flying from a popular airport in Ireland, such as Dublin or Cork, and flying into Ko Samui, then you can expect flight times to average 17h 20m and 22h 55m, respectively.

Cheapest flights to Ko Samui

Find the cheapest flights to Ko Samui from your nearest city or airport

Cheap Ko Samui flight deals and tips

Summary info about Ko Samui flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to Ko Samui

What is there to do in Ko Samui when it’s raining?

When is the best time to plan a beach trip to Ko Samui?

Is there an alternative airport near Ko Samui?

When did momondo last update prices for flights to Ko Samui Airport?

How many operators does momondo search for flights to Ko Samui Airport?

How old do you have to be to fly to Ko Samui Airport?

What documentation or ID do you need to fly to Ko Samui Airport?

Travelling to a place near Ko Samui?

Why use momondo?

Why should I use momondo to find a flight deal to Ko Samui?

Can I find flights to Ko Samui with flexible booking policies on momondo?

How can momondo help me find flights to Ko Samui?

I’m not ready to book a flight to Ko Samui right now. Can momondo alert me if prices change?

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ko Samui

Popular Flights to Ko Samui

Popular routes according to searches in the past day on momondo