How do I get Price Alerts for flights from Cardiff to Ko Samui?

Price Alerts will notify you by email when the price for flights to Ko Samui from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Cardiff to Ko Samui with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Cardiff Wales Airport to Ko Samui Airport?

Prices for flights from Cardiff Wales Airport to Ko Samui Airport are refreshed on a daily basis.

How old do you have to be to fly from Cardiff Wales Airport to Ko Samui Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£828 Cheap Flights from Cardiff to Ko Samui in 2026

Find the cheapest flights from Cardiff to Ko Samui

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:45 - 19:40CWL Cardiff Wales-USM Ko Samui

27h 55m2 stops Amsterdam Schiphol Hong Kong Intl

08:45 - 09:15USM Ko Samui-CWL Cardiff Wales

30h 30m2 stops Bangkok Suvarnabhumi Amsterdam Schiphol

£828KLM

Tue, 1 Sep - Tue, 22 Sep

09:45 - 15:10CWL Cardiff Wales-USM Ko Samui

23h 25m2 stops Amsterdam Schiphol Bangkok Suvarnabhumi

09:15 - 09:15USM Ko Samui-CWL Cardiff Wales

30h 00m2 stops Bangkok Suvarnabhumi Amsterdam Schiphol

£901Multiple Airlines

Wed, 2 Sep - Wed, 16 Sep

17:15 - 12:45CWL Cardiff Wales-USM Ko Samui

37h 30m2 stops Amsterdam Schiphol Bangkok Suvarnabhumi

11:05 - 23:25USM Ko Samui-CWL Cardiff Wales

42h 20m3 stops Singapore Changi Abu Dhabi Zayed Intl Dublin

£1,287Multiple Airlines

Tue, 1 Sep - Tue, 22 Sep

09:45 - 15:10CWL Cardiff Wales-USM Ko Samui

23h 25m2 stops Amsterdam Schiphol Bangkok Suvarnabhumi

11:05 - 15:40USM Ko Samui-CWL Cardiff Wales

34h 35m3 stops Singapore Changi Abu Dhabi Zayed Intl Malaga

£1,297Multiple Airlines

Wed, 2 Sep - Wed, 16 Sep

09:45 - 14:45CWL Cardiff Wales-USM Ko Samui

23h 00m2 stops Amsterdam Schiphol Bangkok Suvarnabhumi

08:45 - 09:15USM Ko Samui-CWL Cardiff Wales

30h 30m2 stops Bangkok Suvarnabhumi Amsterdam Schiphol

£1,688KLM

Tue, 8 Sep - Tue, 15 Sep

17:30 - 13:05CWL Cardiff Wales-USM Ko Samui

36h 35m2 stops Amsterdam Schiphol Bangkok Suvarnabhumi

07:55 - 09:50USM Ko Samui-CWL Cardiff Wales

32h 55m2 stops Bangkok Suvarnabhumi Amsterdam Schiphol

£1,845KLM

Sat, 19 Dec - Sat, 2 Jan

17:30 - 08:00CWL Cardiff Wales-USM Ko Samui

31h 30m3 stops Amsterdam Schiphol Vienna Intl Singapore Changi

20:20 - 09:50USM Ko Samui-CWL Cardiff Wales

20h 30m2 stops Bangkok Suvarnabhumi Amsterdam Schiphol

£2,550Multiple Airlines

Sat, 19 Dec - Sat, 2 Jan

09:45 - 21:10CWL Cardiff Wales-USM Ko Samui

29h 25m3 stops Amsterdam Schiphol Paris Charles de Gaulle Singapore Changi

13:30 - 16:45USM Ko Samui-CWL Cardiff Wales

33h 15m2 stops Singapore Changi Amsterdam Schiphol

£3,036Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

12:00 - 18:30CWL Cardiff Wales-USM Ko Samui

24h 30m3 stops Belfast City London Heathrow Bangkok Suvarnabhumi

09:15 - 11:30USM Ko Samui-CWL Cardiff Wales

32h 15m3 stops Bangkok Suvarnabhumi London Heathrow Belfast City

£3,095Multiple Airlines

Tue, 1 Sep - Tue, 22 Sep

12:00 - 20:30CWL Cardiff Wales-USM Ko Samui

26h 30m3 stops Belfast City London Heathrow Bangkok Suvarnabhumi

09:15 - 11:30USM Ko Samui-CWL Cardiff Wales

32h 15m3 stops Bangkok Suvarnabhumi London Heathrow Belfast City

£3,097Multiple Airlines

Wed, 2 Sep - Wed, 16 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

KLM flights from Cardiff to Ko Samui

Our best KLM deals on Cardiff to Ko Samui flight tickets

KLM

1 Sept

CWL09:45Cardiff Wales

27h 55m

2 stops

USM19:40Ko Samui

22 Sept

USM08:45Ko Samui

30h 30m

2 stops

CWL09:15Cardiff Wales

£828

KLM

19 Dec

CWL17:30Cardiff Wales

36h 35m

2 stops

USM13:05Ko Samui

2 Jan

USM07:55Ko Samui

32h 55m

2 stops

CWL09:50Cardiff Wales

£1,845

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Tue 1/9

09:45-19:40

2 stops27h 55m

Ko Samui

Tue 22/9

08:45-09:15

2 stops30h 30m

£828

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Wed 2/9

09:45-15:10

2 stops23h 25m

Ko Samui

Wed 16/9

09:15-09:15

2 stops30h 00m

£901

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Tue 1/9

17:15-12:45

2 stops37h 30m

Ko Samui

Tue 22/9

11:05-23:25

3 stops42h 20m

£1,287

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Wed 2/9

09:45-15:10

2 stops23h 25m

Ko Samui

Wed 16/9

11:05-15:40

3 stops34h 35m

£1,297

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Tue 8/9

09:45-14:45

2 stops23h 00m

Ko Samui

Tue 15/9

08:45-09:15

2 stops30h 30m

£1,688

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Sat 19/12

17:30-13:05

2 stops36h 35m

Ko Samui

Sat 2/1

07:55-09:50

2 stops32h 55m

£1,845

Fastest return journey

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Sat 19/12

17:30-08:00

3 stops31h 30m

Ko Samui

Sat 2/1

20:20-09:50

2 stops20h 30m

£2,550

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Tue 8/9

09:45-21:10

3 stops29h 25m

Ko Samui

Tue 15/9

13:30-16:45

2 stops33h 15m

£3,036

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Tue 1/9

12:00-18:30

3 stops24h 30m

Ko Samui

Tue 22/9

09:15-11:30

3 stops32h 15m

£3,095

CardiffKo Samui

CWL Cardiff Wales - USM Ko Samui

CWLUSM

Cardiff Wales

Wed 2/9

12:00-20:30

3 stops26h 30m

Ko Samui

Wed 16/9

09:15-11:30

3 stops32h 15m

£3,097

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Cardiff to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Cardiff to Ko Samui (CWL to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Ko Samui

Fastest flight time	23h 25m
Direct flights	None

The fastest flight from Cardiff to Ko Samui takes 23h 25m

There are no direct flights from Cardiff to Ko Samui. There are no popular flight routes from Cardiff to Ko Samui.

Search flight deals

Frequently asked questions about flying from Cardiff to Ko Samui

How far is Cardiff Wales to Ko Samui by plane?
There are 6258.2 mi between Cardiff Wales and Ko Samui. A reasonable flight in good conditions will take 23h 25m.
When did momondo last update prices for flights from Cardiff Wales Airport to Ko Samui Airport?
Prices for flights from Cardiff Wales Airport to Ko Samui Airport are refreshed on a daily basis.
How old do you have to be to fly from Cardiff Wales Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Cardiff to Ko Samui

How do I get Price Alerts for flights from Cardiff to Ko Samui?
Price Alerts will notify you by email when the price for flights to Ko Samui from Cardiff decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Cardiff to Ko Samui with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Ko Samui?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ko Samui from Cardiff.

Can I find flights from Cardiff to Ko Samui with flexible booking policies on momondo?

Yes. All flights to Ko Samui from Cardiff on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Cardiff to Ko Samui?

Once all potential Cardiff to Ko Samui flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Cardiff to Ko Samui right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Cardiff to Ko Samui flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.