Which airlines fly to Ko Samui?

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.

Qatar Airways Flights to Ko Samui

142 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 €528, departing from Dublin. Qatar Airways is the most popular choice on momondo for this route and has been scored 7.4/10 by 3,624 of our users.

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 21h 55m and 37h 40m, respectively.

€448 Cheap Flights to Ko Samui in 2025

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Find the cheapest flights from Ireland to Ko Samui

Round-trip

One-way

Cheap return flights

08:45 - 21:05DUB-USM

29h 20m2 stops

07:00 - 08:05USM-DUB

32h 05m2 stops

€693

Find Deal

Mon, 27 Oct - Mon, 3 Nov

16:45 - 13:05DUB-USM

37h 20m2 stops

16:25 - 15:45USM-DUB

30h 20m2 stops

€725Air France

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Thu, 6 Nov - Wed, 19 Nov

07:45 - 17:30DUB-USM

26h 45m2 stops

19:00 - 19:50USM-DUB

31h 50m2 stops

€819Qatar Airways

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Tue, 25 Nov - Fri, 5 Dec

07:45 - 17:30DUB-USM

26h 45m2 stops

13:25 - 06:00USM-DUB

23h 35m2 stops

€826Qatar Airways

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Tue, 25 Nov - Mon, 8 Dec

18:35 - 10:40DUB-USM

33h 05m2 stops

16:25 - 12:05USM-DUB

26h 40m2 stops

€836SWISS

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Thu, 27 Nov - Mon, 8 Dec

08:10 - 07:45DUB-USM

40h 35m2 stops

17:05 - 18:15USM-DUB

32h 10m2 stops

€885Etihad Airways

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Sat, 29 Nov - Thu, 4 Dec

08:10 - 12:35DUB-USM

21h 25m2 stops

19:00 - 18:15USM-DUB

30h 15m2 stops

€911Etihad Airways

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Fri, 28 Nov - Thu, 4 Dec

06:25 - 18:15DUB-USM

28h 50m2 stops

16:25 - 09:40USM-DUB

24h 15m2 stops

€957Turkish Airlines

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Tue, 25 Nov - Sun, 7 Dec

07:20 - 18:15DUB-USM

27h 55m2 stops

17:05 - 15:30USM-DUB

29h 25m2 stops

€979Turkish Airlines

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Fri, 28 Nov - Thu, 4 Dec

18:35 - 16:40DUB-USM

39h 05m2 stops

10:00 - 13:15USM-DUB

34h 15m3 stops

€1,683SWISS

Find Deal

Sat, 27 Dec - Sat, 10 Jan

Fly from

Route

Depart

Return

Price

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 27/10

08:45-21:05

2 stops29h 20m

Ko Samui

Mon 3/11

07:00-08:05

2 stops32h 05m

€693

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 6/11

16:45-13:05

2 stops37h 20m

Ko Samui

Wed 19/11

16:25-15:45

2 stops30h 20m

€725

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 25/11

07:45-17:30

2 stops26h 45m

Ko Samui

Fri 5/12

19:00-19:50

2 stops31h 50m

€818

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 25/11

07:45-17:30

2 stops26h 45m

Ko Samui

Mon 8/12

13:25-06:00

2 stops23h 35m

€826

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 27/11

18:35-10:40

2 stops33h 05m

Ko Samui

Mon 8/12

16:25-12:05

2 stops26h 40m

€836

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 29/11

08:10-07:45

2 stops40h 35m

Ko Samui

Thu 4/12

17:05-18:15

2 stops32h 10m

€885

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Fri 28/11

08:10-12:35

2 stops21h 25m

Ko Samui

Thu 4/12

19:00-18:15

2 stops30h 15m

€911

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Tue 25/11

06:25-18:15

2 stops28h 50m

Ko Samui

Sun 7/12

16:25-09:40

2 stops24h 15m

€957

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Fri 28/11

07:20-18:15

2 stops27h 55m

Ko Samui

Thu 4/12

17:05-15:30

2 stops29h 25m

€979

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sat 27/12

18:35-16:40

2 stops39h 05m

Ko Samui

Sat 10/1

10:00-13:15

3 stops34h 15m

€1,683

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Ko Samui flights insights and trends

Explore insights for your Ko Samui flight to craft the best travel plan

Prices

Other information

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 April instead. Flights to Ko Samui in April, while not as cheap as those in November, still average around €812.

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 €572. Flights from Ireland to Ko Samui on a Sunday will generally be more expensive and average around €736. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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 flights to Ko Samui

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

Find flights from Dublin to Ko Samui

CHEAPEST MONTH TO FLY TO KO SAMUI FROM DUBLIN	November	21% cheaper	Flying from Dublin to Ko Samui costs on average just €779 in November
MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM DUBLIN	December	35% more expensive	It costs about €1,329 for flights to Ko Samui from Dublin in December
MOST POPULAR MONTH TO FLY TO KO SAMUI FROM DUBLIN	March	450% more users visited	More momondo users searched in flights to Ko Samui from Dublin in March 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	€448
Best Round-Trip Price	€693
Fastest flight time	20h 10m
Popular in	December

The best one-way flight price to Ko Samui from Ireland in the last 72 hours is €448 (Dublin to Ko Samui).

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The best round-trip flight price to Ko Samui from Ireland in the last 72 hours is €693 (Dublin to Ko Samui).

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The fastest flight to Ko Samui from Ireland takes 20h 10m (Dublin to Ko Samui).

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December has the highest demand for flights to Ko Samui, with a 7% price increase on average.

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

Is there an alternative airport near Ko Samui?

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

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 September 2025, there are 2 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.

Ko Pha Ngan

Ko Tao

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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.

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Popular Flights to Ko Samui

Dublin to Ko Samui Flightsfrom €813

Cork to Ko Samui Flightsfrom €1,092

€448 Cheap flights to Ko Samui

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Ko Samui departing on 14/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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Filter for what you want

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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 April instead. Flights to Ko Samui in April, while not as cheap as those in November, still average around €812.

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 21h 55m and 37h 40m, 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