Flights to Ko Samui

€805 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 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to Ko Samui

Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
20:35 - 21:35
DUB
-
USM
19h 00m
2 stops
Etihad Airways Logo
08:00 - 07:15
USM
-
DUB
29h 15m
2 stops
€805Etihad Airways
Mon, 8 Jun - Mon, 22 Jun
Etihad Airways Logo
20:35 - 21:35
DUB
-
USM
19h 00m
2 stops
Etihad Airways Logo
06:00 - 19:05
USM
-
DUB
19h 05m
2 stops
€810Etihad Airways
Fri, 2 Oct - Fri, 9 Oct
Etihad Airways Logo
09:00 - 15:10
DUB
-
USM
24h 10m
2 stops
Etihad Airways Logo
08:00 - 07:15
USM
-
DUB
29h 15m
2 stops
€813Etihad Airways
Sun, 7 Jun - Sat, 20 Jun
Qatar Airways Logo
08:15 - 18:00
DUB
-
USM
27h 45m
2 stops
Qatar Airways Logo
19:00 - 20:15
USM
-
DUB
31h 15m
2 stops
€823Qatar Airways
Thu, 4 Jun - Wed, 17 Jun
KLM Logo
17:15 - 21:05
DUB
-
USM
20h 50m
2 stops
KLM Logo
08:30 - 22:15
USM
-
DUB
20h 45m
2 stops
€838KLM
Sun, 15 Nov - Fri, 20 Nov
Multiple Airlines Logo
16:45 - 21:05
DUB
-
USM
21h 20m
2 stops
Multiple Airlines Logo
09:20 - 22:15
USM
-
DUB
19h 55m
2 stops
€839Multiple Airlines
Fri, 13 Nov - Fri, 20 Nov
Multiple Airlines Logo
09:00 - 18:00
DUB
-
USM
27h 00m
2 stops
Multiple Airlines Logo
07:00 - 06:25
USM
-
DUB
30h 25m
2 stops
€842Multiple Airlines
Mon, 19 Oct - Mon, 26 Oct
British Airways Logo
11:50 - 21:05
ORK
-
USM
26h 15m
2 stops
British Airways Logo
16:25 - 15:25
USM
-
ORK
30h 00m
2 stops
€1,096British Airways
Fri, 6 Nov - Fri, 20 Nov
British Airways Logo
07:40 - 18:15
ORK
-
USM
27h 35m
2 stops
British Airways Logo
16:25 - 11:10
USM
-
ORK
25h 45m
2 stops
€1,100British Airways
Fri, 6 Nov - Fri, 20 Nov
Qatar Airways Logo
11:55 - 18:25
ORK
-
USM
23h 30m
3 stops
Qatar Airways Logo
15:35 - 11:10
USM
-
ORK
26h 35m
3 stops
€1,165Qatar Airways
Fri, 6 Nov - Fri, 20 Nov

momondo Fare Finder

 
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 13,528 searches and data was last updated on 20 May 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 8/6

20:35-21:35

2 stops19h 00m

Ko Samui

Mon 22/6

08:00-07:15

2 stops29h 15m

€805
Fastest return journey

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Fri 2/10

20:35-21:35

2 stops19h 00m

Ko Samui

Fri 9/10

06:00-19:05

2 stops19h 05m

€810

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sun 7/6

09:00-15:10

2 stops24h 10m

Ko Samui

Sat 20/6

08:00-07:15

2 stops29h 15m

€813

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Thu 4/6

08:15-18:00

2 stops27h 45m

Ko Samui

Wed 17/6

19:00-20:15

2 stops31h 15m

€823

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Sun 15/11

17:15-21:05

2 stops20h 50m

Ko Samui

Fri 20/11

08:30-22:15

2 stops20h 45m

€838

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Fri 13/11

16:45-21:05

2 stops21h 20m

Ko Samui

Fri 20/11

09:20-22:15

2 stops19h 55m

€839

DublinKo Samui

DUB - USM

DUBUSM

Dublin

Mon 19/10

09:00-18:00

2 stops27h 00m

Ko Samui

Mon 26/10

07:00-06:25

2 stops30h 25m

€842

CorkKo Samui

ORK - USM

ORKUSM

Cork

Fri 6/11

11:50-21:05

2 stops26h 15m

Ko Samui

Fri 20/11

16:25-15:25

2 stops30h 00m

€1,096

CorkKo Samui

ORK - USM

ORKUSM

Cork

Fri 6/11

07:40-18:15

2 stops27h 35m

Ko Samui

Fri 20/11

16:25-11:10

2 stops25h 45m

€1,100

CorkKo Samui

ORK - USM

ORKUSM

Cork

Fri 6/11

11:55-18:25

3 stops23h 30m

Ko Samui

Fri 20/11

15:35-11:10

3 stops26h 35m

€1,165

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 September, then book flights to Ko Samui from Ireland during April instead. Flights to Ko Samui in April, while not as cheap as those in September, still average around €819.

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 DUBLINSeptember23% cheaperFlying from Dublin to Ko Samui costs on average just €790 in September
MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM DUBLINDecember94% more expensiveIt costs about €1,981 for flights to Ko Samui from Dublin in December
MOST POPULAR MONTH TO FLY TO KO SAMUI FROM DUBLINFebruary100% more users visitedMore momondo users searched in flights to Ko Samui from Dublin in February 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

€805

Fastest flight time

19h 00m

Popular in

December
The best round-trip flight price to Ko Samui from Ireland in the last 72 hours is €805 (Dublin to Ko Samui).
The fastest flight to Ko Samui from Ireland takes 19h 00m (Dublin to Ko Samui).
December has the highest demand for flights to Ko Samui, with a 22% price increase on average.

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.

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.

Is there a cheaper alternative to flying into Ko Samui?

You can find deals at Surat Thani Airport for €101 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

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?

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 locations
Ko Tao
Ko Pha Ngan

Why 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.

An easier way to manage your Ko Samui trip

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1 adult
Fri 19/6
Fri 26/6

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