DUB - USM

€553 Find Cheap Flights from Dublin to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
€705
Typical prices: €917-€1,346
Multiple Airlines
Sat 1/12Sat 8/12
DUB - USM • 2 stops
Cheapest one-way flight
€546
Typical prices: €703-€1,026
Qatar Airways
Thu 6/12
DUB - USM • 2 stops
When to travel
May
Cheapest • 23% 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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Booking Insights
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

Tue, 1 Dec - Tue, 8 Dec
Multiple Airlines Logo
11:00 - 19:45DUB  Dublin-USM Ko Samui
25h 45m2 stops Beijing Capital Bangkok Suvarnabhumi
Multiple Airlines Logo
08:15 - 10:10USM  Ko Samui-DUB Dublin
32h 55m2 stops Phuket City London Gatwick
€705Multiple Airlines
Mon, 23 Nov - Mon, 7 Dec
Multiple Airlines Logo
09:00 - 17:30DUB  Dublin-USM Ko Samui
25h 30m2 stops Shanghai Pu Dong Phuket City
Multiple Airlines Logo
18:15 - 06:15USM  Ko Samui-DUB Dublin
43h 00m2 stops Phuket City Shanghai Pu Dong
€725Multiple Airlines
Mon, 23 Nov - Mon, 7 Dec
Multiple Airlines Logo
09:00 - 17:30DUB  Dublin-USM Ko Samui
25h 30m2 stops Shanghai Pu Dong Phuket City
Multiple Airlines Logo
18:15 - 06:15USM  Ko Samui-DUB Dublin
43h 00m2 stops Phuket City Shanghai Pu Dong
€726Multiple Airlines
Tue, 1 Dec - Tue, 8 Dec
Multiple Airlines Logo
15:25 - 20:50DUB  Dublin-USM Ko Samui
22h 25m3 stops Barcelona-El Prat Abu Dhabi Zayed Intl Phuket City
Multiple Airlines Logo
08:15 - 10:10USM  Ko Samui-DUB Dublin
32h 55m2 stops Phuket City London Gatwick
€729Multiple Airlines
Wed, 3 Mar - Thu, 18 Mar
Qatar Airways Logo
14:05 - 21:20DUB  Dublin-USM Ko Samui
24h 15m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
18:30 - 12:35USM  Ko Samui-DUB Dublin
25h 05m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
€840Qatar Airways
Mon, 8 Mar - Mon, 22 Mar
Qatar Airways Logo
14:05 - 20:25DUB  Dublin-USM Ko Samui
23h 20m2 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
€840Qatar Airways
Wed, 3 Mar - Mon, 22 Mar
Qatar Airways Logo
14:05 - 21:20DUB  Dublin-USM Ko Samui
24h 15m2 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
€840Qatar Airways
Tue, 2 Mar - Tue, 23 Mar
Etihad Airways Logo
19:45 - 20:50DUB  Dublin-USM Ko Samui
18h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
12:30 - 06:30USM  Ko Samui-DUB Dublin
25h 00m2 stops Phuket City Abu Dhabi Zayed Intl
€974Etihad Airways
Thu, 4 Mar - Sun, 28 Mar
Etihad Airways Logo
19:45 - 20:25DUB  Dublin-USM Ko Samui
17h 40m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
06:00 - 18:05USM  Ko Samui-DUB Dublin
19h 05m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€974Etihad Airways
Thu, 11 Mar - Mon, 22 Mar
Etihad Airways Logo
08:05 - 15:10DUB  Dublin-USM Ko Samui
24h 05m2 stops Abu Dhabi Zayed Intl Phuket City
Etihad Airways Logo
21:10 - 18:10USM  Ko Samui-DUB Dublin
28h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
€1,046Etihad 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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Dublin to Ko Samui. It's 14% cheaper than the average day, while Monday is the most expensive, with prices 10% higher.

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

•May is the cheapest month to fly from Dublin to Ko Samui at €833 return.
•December (€1,529) and February (€1,313) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 83% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Dublin to Ko Samui flights

Low season

October

Cheapest flight

€546
Beat the crowds with an average 81% drop in travellers.
The most popular month to fly with an average 86% increase in travellers.
One-way flight 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 answers about this route, including flight times, airports, airlines, and booking tips.

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

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

    • Economy class
    • Premium Economy Class
    • Business Class

  • 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 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 €1,087 over the past 12 months. Anything below €917 counts as a good deal.

  • 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 €855, which is 10% below the typical average for this route.

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

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates averaging €26 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • 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).

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

    Yes. Flexible dates can save you up to 23% on flights from Dublin to Ko Samui. Thursday is the cheapest departure day at €937 return on average, while Monday is the most expensive at €1,206, a difference of €270.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

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

    Ko Samui is 7 hours ahead of Dublin (Indochina Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

  • 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.

  • 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.

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 Thursday departure and avoid flying on Monday. On this route, Thursday flights average €937, about €270 less than Monday fares (22% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Dublin to Ko Samui trip for May. Fares historically average €833 return in that month – typically €697 less than the most expensive month, which is December (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