DUB - USM

€370 Find Cheap Flights from Dublin to Ko Samui – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€687
Typical prices: €917-€1,346
Multiple Airlines
Sun 7/10Sat 20/10
DUB - USM • 2 stops
Cheapest one-way flight
€376
Typical prices: €674-€1,004
Multiple Airlines
Fri 16/2
DUB - USM • 2 stops
When to travel
April
Cheapest • 47% price drop
July
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Ko Samui!
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Flight Deals

Cheap Flights from Dublin to Ko Samui (DUB-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dublin to Ko Samui

Wed, 7 Oct - Tue, 20 Oct
Multiple Airlines Logo
09:00 - 20:25DUB  Dublin-USM Ko Samui
29h 25m2 stops Abu Dhabi Zayed Intl Phuket City
Multiple Airlines Logo
12:10 - 07:15USM  Ko Samui-DUB Dublin
25h 05m2 stops Phuket City Abu Dhabi Zayed Intl
€687Multiple Airlines
Sun, 1 Nov - Sun, 8 Nov
Multiple Airlines Logo
08:05 - 17:10DUB  Dublin-USM Ko Samui
26h 05m2 stops Abu Dhabi Zayed Intl Singapore Changi
Multiple Airlines Logo
15:35 - 18:10USM  Ko Samui-DUB Dublin
33h 35m3 stops Bangkok Suvarnabhumi Krabi Abu Dhabi Zayed Intl
€688Multiple Airlines
Mon, 26 Oct - Mon, 9 Nov
Multiple Airlines Logo
06:00 - 17:30DUB  Dublin-USM Ko Samui
28h 30m2 stops Paris Charles de Gaulle Phuket City
Multiple Airlines Logo
18:15 - 22:15USM  Ko Samui-DUB Dublin
35h 00m3 stops Phuket City Bangkok Suvarnabhumi Amsterdam Schiphol
€696Multiple Airlines
Sun, 1 Nov - Sun, 8 Nov
Multiple Airlines Logo
05:45 - 17:30DUB  Dublin-USM Ko Samui
28h 45m3 stops Václav Havel Prague Sharjah Phuket City
Multiple Airlines Logo
14:15 - 18:10USM  Ko Samui-DUB Dublin
34h 55m3 stops Bangkok Suvarnabhumi Krabi Abu Dhabi Zayed Intl
€697Multiple Airlines
Mon, 26 Oct - Mon, 9 Nov
Qatar Airways Logo
07:45 - 10:35DUB  Dublin-USM Ko Samui
19h 50m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
20:30 - 12:35USM  Ko Samui-DUB Dublin
23h 05m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€742Qatar Airways
Thu, 25 Feb - Mon, 8 Mar
Qatar Airways Logo
07:45 - 19:50DUB  Dublin-USM Ko Samui
29h 05m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
07:00 - 06:00USM  Ko Samui-DUB Dublin
30h 00m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€747Qatar Airways
Mon, 26 Oct - Mon, 9 Nov
Qatar Airways Logo
07:45 - 10:35DUB  Dublin-USM Ko Samui
19h 50m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
14:25 - 06:00USM  Ko Samui-DUB Dublin
22h 35m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€757Qatar Airways
Mon, 26 Oct - Mon, 9 Nov
Etihad Airways Logo
19:45 - 20:25DUB  Dublin-USM Ko Samui
17h 40m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
11:10 - 06:30USM  Ko Samui-DUB Dublin
26h 20m2 stops Phuket City Abu Dhabi Zayed Intl
€898Etihad Airways
Thu, 11 Mar - Sun, 14 Mar
Etihad Airways Logo
19:45 - 20:50DUB  Dublin-USM Ko Samui
18h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
16:30 - 06:30USM  Ko Samui-DUB Dublin
21h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€1,335Etihad Airways
Thu, 11 Mar - Mon, 22 Mar
Etihad Airways Logo
19:45 - 20:50DUB  Dublin-USM Ko Samui
18h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
18:15 - 06:30USM  Ko Samui-DUB Dublin
19h 15m2 stops Phuket City Abu Dhabi Zayed Intl
€1,817Etihad Airways
Booking Insights

Price, demand, and travel trends for Dublin to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Dublin to Ko Samui with more confidence.

What's the cheapest day of the week to fly from Dublin to Ko Samui?

Sunday is the cheapest day of the week to fly from Dublin to Ko Samui and is 17% cheaper than the average day. Monday is the most expensive day with flight prices 14% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Dublin to Ko Samui?

•April is the cheapest month to fly from Dublin to Ko Samui at €595 return.
•January (€1,693) and December (€1,628) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 184% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Dublin to Ko Samui flights

Low season

October

Cheapest flight

€376
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flights from Dublin to Ko Samui

When to book flights from Dublin to Ko Samui

Are your dates flexible? Find out the best times to travel from Dublin to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Dublin to Ko Samui flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What are the options for travelling from Koh Samui Airport to other parts of the island?

    Private taxis are a good option for travelling to your destination. Fares range from about ฿400-1000 (€11-27) depending on the location you are travelling to. You could also choose to book a minivan, which will cost about ฿600-1500 (€17-41). Shared minivans tend to be cheaper at around ฿100-600 (€3-17) but there can be a wait of up to 30min depending on how many passengers the minivan holds. Your journey time will depend on your destination on the island but journeys to the opposite end of the island take around 45min.

  • Can I fly directly from Dublin to Koh Samui?

    Flights from Dublin Airport to Koh Samui airport usually have at least two stops. Most flights between these airports have stops in cities like Zurich, Istanbul, Abu Dhabi and Bangkok.

  • Are there services for passengers flying from Dublin with young children?

    Dublin Airport has useful baby feeding rooms located in Terminals 1 and 2. These free spaces have a private environment where you can use a microwave, high chair and bottle warmer while taking advantage of comfortable seating.

  • Which airports can I use when flying from Dublin to Ko Samui?

    Flights from Dublin to Ko Samui usually depart from Dublin (DUB) and arrive at Ko Samui (USM).

  • Which cabin classes can I book on flights from Dublin to Ko Samui?

    Two cabin classes are available on flights from Dublin to Ko Samui:

    • Economy class
    • Business Class

  • Can I save money by using flexible dates for flights from Dublin to Ko Samui?

    On the Dublin to Ko Samui route, being flexible with your departure day can save you up to 28%. Sunday is the cheapest day at €938 return on average, while Monday is the most expensive at €1,285 – a €347 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Chaweng Noi Beach. These are among the most viewed places in Ko Samui on KAYAK.

  • Do I need a passport to fly from Dublin to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Dublin to Ko Samui looking right now?

    One-way fares from Dublin to Ko Samui are currently lower than usual. Average one-way flight prices are about €728, which is 22% below the typical average for this route.

  • What is the time difference between Dublin and Ko Samui?

    Ko Samui is 6 hours ahead of Dublin (Indochina Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around €12 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz

  • How much should I expect to pay for a Dublin to Ko Samui flight?

    Return flights from Dublin to Ko Samui range from €917 to €1,346, with an average of €1,120 over the past 12 months. Anything below €917 counts as a good deal.

Your guide to booking Dublin to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average €938 – about €347 less than Monday (27% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Dublin to Ko Samui trip for April. Fares historically average €595 return in that month – typically €1,099 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.
    - Ozo Chaweng Samui - Sha Extra Plus
    - Melia Koh Samui
    - Amari Koh Samui
  • Dublin Airport (DUB) offers a Fast-Track Security Service to help passengers move more quickly through security in Terminals 1 and 2. The service costs around €6-8 for access to a dedicated Fast-Track channel, SMS flight updates and a hot drink.
  • Koh Samui Airport (USM) has three lounges for passengers to enjoy while travelling. There are two lounges in the Domestic Terminal and one in the International Terminal. These offer TVs, flight monitors and Wi-Fi along with drinks, snacks, and premium food options. Entry to the lounges costs from around ฿930 (€25).
  • Passengers can take advantage of free Wi-Fi when travelling through Dublin Airport. The service is unlimited with no registration required. There are also free charging stations located around the airport where passengers can charge their electronic devices from comfortable seating.

More options for your flight from Dublin to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car hire in Ko Samui
Hotels in Ko Samui
Holidays in Ko Samui