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

100 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 €536, departing from Dublin. Qatar Airways is the most popular choice on momondo for this route and has been scored 7.4/10 by 3,661 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 24h 30m and 20h 40m, respectively.

€691 Cheap Flights to Ko Samui in 2025/26

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08:10 - 15:40DUB-USM

24h 30m2 stops

19:00 - 18:15USM-DUB

30h 15m2 stops

€691Etihad Airways

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Mon, 9 Mar - Mon, 23 Mar

20:25 - 07:20DUB-USM

28h 55m2 stops

18:55 - 18:55USM-DUB

30h 00m2 stops

€699Etihad Airways

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Wed, 15 Apr - Fri, 24 Apr

16:45 - 08:00DUB-USM

32h 15m3 stops

07:15 - 23:05USM-DUB

22h 50m2 stops

€732Multiple Airlines

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Thu, 20 Nov - Wed, 3 Dec

16:45 - 08:00DUB-USM

32h 15m3 stops

12:25 - 16:35USM-DUB

35h 10m3 stops

€744Multiple Airlines

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Thu, 20 Nov - Wed, 3 Dec

16:45 - 08:00DUB-USM

32h 15m3 stops

18:15 - 16:35USM-DUB

29h 20m3 stops

€751Multiple Airlines

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Thu, 20 Nov - Wed, 3 Dec

08:55 - 13:05DUB-USM

21h 10m2 stops

11:40 - 07:50USM-DUB

27h 10m2 stops

€765Air France

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Mon, 1 Dec - Sat, 31 Jan

08:50 - 14:30DUB-USM

22h 40m3 stops

07:00 - 12:50USM-DUB

36h 50m3 stops

€767Multiple Airlines

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Mon, 9 Mar - Mon, 23 Mar

16:30 - 20:50DUB-USM

21h 20m2 stops

13:25 - 15:30USM-DUB

33h 05m2 stops

€1,013Turkish Airlines

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Thu, 20 Nov - Wed, 3 Dec

15:40 - 12:35ORK-USM

37h 55m2 stops

11:40 - 15:00USM-ORK

34h 20m2 stops

€1,148Air France

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Sat, 10 Jan - Sat, 17 Jan

11:55 - 17:00ORK-USM

22h 05m3 stops

16:30 - 11:10USM-ORK

25h 40m3 stops

€1,786Qatar Airways

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Sat, 10 Jan - Sat, 17 Jan

Fly from

Route

Depart

Return

Price

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 9/3

08:10-15:40

2 stops24h 30m

Ko Samui

Mon 23/3

19:00-18:15

2 stops30h 15m

€691

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Wed 15/4

20:25-07:20

2 stops28h 55m

Ko Samui

Fri 24/4

18:55-18:55

2 stops30h 00m

€699

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 20/11

16:45-08:00

3 stops32h 15m

Ko Samui

Wed 3/12

07:15-23:05

2 stops22h 50m

€732

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 20/11

16:45-08:00

3 stops32h 15m

Ko Samui

Wed 3/12

12:25-16:35

3 stops35h 10m

€744

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 20/11

16:45-08:00

3 stops32h 15m

Ko Samui

Wed 3/12

18:15-16:35

3 stops29h 20m

€751

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 1/12

08:55-13:05

2 stops21h 10m

Ko Samui

Sat 31/1

11:40-07:50

2 stops27h 10m

€765

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 9/3

08:50-14:30

3 stops22h 40m

Ko Samui

Mon 23/3

07:00-12:50

3 stops36h 50m

€767

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 20/11

16:30-20:50

2 stops21h 20m

Ko Samui

Wed 3/12

13:25-15:30

2 stops33h 05m

€1,013

CorkKo Samui

ORK - USM

ORKUSM

Cork

Sat 10/1

15:40-12:35

2 stops37h 55m

Ko Samui

Sat 17/1

11:40-15:00

2 stops34h 20m

€1,148

CorkKo Samui

ORK - USM

ORKUSM

Cork

Sat 10/1

11:55-17:00

3 stops22h 05m

Ko Samui

Sat 17/1

16:30-11:10

3 stops25h 40m

€1,786

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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 March instead. Flights to Ko Samui in March, while not as cheap as those in November, still average around €811.

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 €581. Flights from Ireland to Ko Samui on a Sunday will generally be more expensive and average around €748. 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 €540. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €608.

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	23% cheaper	Flying from Dublin to Ko Samui costs on average just €792 in November
MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM DUBLIN	July	28% more expensive	It costs about €1,311 for flights to Ko Samui from Dublin in July
MOST POPULAR MONTH TO FLY TO KO SAMUI FROM DUBLIN	September	450% more users visited	More momondo users searched in flights to Ko Samui from Dublin in September than any other month

Cheap Ko Samui flight deals and tips

Summary info about Ko Samui flight prices, duration and airlines

Best Round-Trip Price	€691
Fastest flight time	19h 15m
Popular in	July

The best round-trip flight price to Ko Samui from Ireland in the last 72 hours is €691 (Dublin to Ko Samui).

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The fastest flight to Ko Samui from Ireland takes 19h 15m (Dublin to Ko Samui).

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July has the highest demand for flights to Ko Samui, with a 9% 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 November 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.

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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 €775

Cork to Ko Samui Flightsfrom €912

€691 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 9/3. 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

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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 March instead. Flights to Ko Samui in March, while not as cheap as those in November, still average around €811.

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 24h 30m and 20h 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 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