Find flights
When to book

Cheap flights from Cardiff to Ko Samui from £826

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — USM
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Cardiff to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 October 2025.

Round-trip from

£826
27/11-4/12
  • 27/11-4/12
  • 4 total stops
  • 69h 00m total
  • Cardiff to Ko Samui
Search Deals

Find flight deals from Cardiff to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Ko Samui
Explore the most affordable flight options available from Cardiff to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Thu 27/1117:25CWL - USM
2 stops36h 40mMultiple Airlines
Thu 4/1208:30USM - CWL
2 stops32h 20mMultiple Airlines
Deal found 13/10£826

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
Use the filters below to find and compare flights from Cardiff to Ko Samui that are best for you.

Fly from

Cardiff

Fly to

Ko Samui

Route

Depart

Return

Price

CardiffKo Samui

CWL - USM

CWLUSM

Cardiff Wales

Thu 27/11

17:25-13:05

2 stops36h 40m

Ko Samui

Thu 4/12

08:30-09:50

2 stops32h 20m

£826

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Best time to book a flight from Cardiff to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Cardiff with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Cardiff to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Cardiff to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Ko Samui.

  • Can I find deals for business class flights from Cardiff to Ko Samui?

    Yes. Cheapflights offers flight deals from Cardiff to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Ko Samui?

Cheapflights makes it easy to find Cardiff to Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Ko Samui?

Cheapflights simply makes it quick and affordable to book flights from Cardiff to Ko Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Cardiff to Ko Samui with no change fees?

Certainly. Search results for flights to Ko Samui from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cardiff to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Cardiff to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.