Cheap flights from Cardiff to Ko Samui from £992
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
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 19 August 2025.
Find flight deals from Cardiff to Ko Samui
Cheapest flights from Cardiff to Ko SamuiExplore 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 19 August 2025.
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 19 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Cardiff to Ko Samui that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CardiffKo Samui
CWL - USM
CWLUSM
Cardiff Wales
Fri 3/10
17:15-14:45
2 stops39h 30m
Ko Samui
Fri 10/10
10:55-17:05
2 stops36h 10m
CardiffKo Samui
CWL - USM
CWLUSM
Cardiff Wales
Wed 1/10
09:50-20:30
2 stops28h 40m
Ko Samui
Wed 8/10
08:45-09:15
2 stops30h 30m
CardiffKo Samui
CWL - USM
CWLUSM
Cardiff Wales
Fri 3/10
17:15-13:45
2 stops38h 30m
Ko Samui
Fri 10/10
17:40-16:20
3 stops28h 40m
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.
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.
Travelling to a place near Ko Samui?
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Alternative routes for Cardiff to Ko Samui
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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.