£381 Cheap Flights from Dublin (DUB) to Samui Intl. Airport (USM)

View £381 flight on Wed, 3 Sep 2025Opens in a new window

Popular airlines from Dublin Airport (DUB) to Samui Intl. Airport (USM)

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Cheap Flights from Dublin (DUB) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at £381 for one-way flights and £633 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Tue, 30 Sep - Tue, 21 Oct
DUB
Dublin
USM
Koh Samui
£633 Return, found 8 hours ago
£633
Return
found 8 hours ago
Select Swiss International Air Lines flight, departing Tue, 30 Sep from Dublin to Koh Samui, returning Tue, 21 Oct, priced at £633 found 8 hours ago
Swiss International Air Lines
Tue, 16 Sep - Tue, 23 Sep
DUB
Dublin
USM
Koh Samui
£646 Return, found 6 days ago
£646
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Tue, 16 Sep from Dublin to Koh Samui, returning Tue, 23 Sep, priced at £646 found 6 days ago
British Airways
Tue, 11 Nov - Thu, 27 Nov
DUB
Dublin
USM
Koh Samui
£646 Return, found 6 days ago
£646
Return
found 6 days ago
Select British Airways flight, departing Tue, 11 Nov from Dublin to Koh Samui, returning Thu, 27 Nov, priced at £646 found 6 days ago
Swiss International Air Lines
Mon, 8 Sep - Mon, 22 Sep
DUB
Dublin
USM
Koh Samui
£648 Return, found 2 days ago
£648
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, 8 Sep from Dublin to Koh Samui, returning Mon, 22 Sep, priced at £648 found 2 days ago
KLM
Tue, 16 Sep - Tue, 23 Sep
DUB
Dublin
USM
Koh Samui
£654 Return, found 6 days ago
£654
Return
found 6 days ago
Select KLM flight, departing Tue, 16 Sep from Dublin to Koh Samui, returning Tue, 23 Sep, priced at £654 found 6 days ago
KLM
Wed, 5 Nov - Sun, 16 Nov
DUB
Dublin
USM
Koh Samui
£655 Return, found 1 day ago
£655
Return
found 1 day ago
Select KLM flight, departing Wed, 5 Nov from Dublin to Koh Samui, returning Sun, 16 Nov, priced at £655 found 1 day ago
Air France
Tue, 2 Sep - Wed, 10 Sep
DUB
Dublin
USM
Koh Samui
£657 Return, found 4 days ago
£657
Return
found 4 days ago
Select Air France flight, departing Tue, 2 Sep from Dublin to Koh Samui, returning Wed, 10 Sep, priced at £657 found 4 days ago
Air France
Sun, 14 Sep - Mon, 22 Sep
DUB
Dublin
USM
Koh Samui
£660 Return, found 1 day ago
£660
Return
found 1 day ago
Select Air France flight, departing Sun, 14 Sep from Dublin to Koh Samui, returning Mon, 22 Sep, priced at £660 found 1 day ago
KLM
Mon, 1 Dec - Wed, 28 Jan
DUB
Dublin
USM
Koh Samui
£662 Return, found 6 hours ago
£662
Return
found 6 hours ago
Select KLM flight, departing Mon, 1 Dec from Dublin to Koh Samui, returning Wed, 28 Jan, priced at £662 found 6 hours ago
Lufthansa
Tue, 11 Nov - Thu, 27 Nov
DUB
Dublin
USM
Koh Samui
£670 Return, found 6 days ago
£670
Return
found 6 days ago
Select Lufthansa flight, departing Tue, 11 Nov from Dublin to Koh Samui, returning Thu, 27 Nov, priced at £670 found 6 days ago
Flight from Dublin to Samui Intl. Airport route information
Origin airport
Dublin
Destination airport
Samui Intl. Airport
Airlines serving
Air France, British Airways, Etihad Airways, Finnair, KLM, Qatar Airways, Swiss International Air Lines, Turkish Airlines
Return price
£633
Distance
10149 km

Compare flights from Dublin to Samui Intl. Airport easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Dublin to Samui Intl. Airport. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Samui Intl. Airport in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Dublin to Samui Intl. Airport.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Dublin (DUB) to Samui Intl. Airport (USM)

The easiest way to view the best deals on flights from Dublin to Samui Intl. Airport today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Dublin to Samui Intl. Airport start at just £633 and range up to £670.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Dublin and Samui Intl. Airport
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Dublin to Samui Intl. Airport flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Dublin to Samui Intl. Airport for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Dublin Airport to Ko Samui Airport?
Round-trip journeys between DUB and USM start from £633. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year --- book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dublin Airport to USM?
This can differ between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where there are simple instructions on how to cancel your flight online.
How do I find cheap flights from Dublin Airport (DUB) to Samui Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for DUB to Ko Samui Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dublin Airport to Ko Samui Airport (USM)?
With a flight distance of 10,200 kilometres from Dublin Airport (DUB) to Samui Airport, this is a long-haul journey. Be sure to stay hydrated and get up to stretch your legs every so often.
Which airlines fly direct from Dublin Airport to USM?
There are no direct flights, so you'll have to make at least one stop between Dublin Airport (DUB) and Ko Samui Airport. Make the most of the layover time to stretch your legs and enjoy some personal space.
Are Dublin Airport (DUB) to Ko Samui Airport (USM) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally find a bargain, with some of the cheapest fares from Dublin Airport (DUB) to USM arising a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals continually --- as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

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