£312 Find Cheap Flights from Cardiff to Southeast Asia – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Southeast Asia departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Cardiff to Southeast Asia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop£668
Manila
Manila3 stops£986
Singapore
Singapore2 stops£746
Phuket City
Phuket City2 stops£806
Denpasar
Denpasar3 stops£1,043
Hanoi
Hanoi2 stops£1,144
Ho Chi Minh City
Ho Chi Minh City2 stops£1,097
Ko Samui
Ko Samui2 stops£1,056
Cebu City
Cebu City3 stops£1,279
Da Nang
Da Nang2 stops£6,584
Chiang Mai
Chiang Mai3 stops£1,085
Langkawi
Langkawi2 stops£1,515
Bangkok
Bangkok1 stop£668
Manila
Manila3 stops£986
Singapore
Singapore2 stops£746
Phuket City
Phuket City2 stops£806
Denpasar
Denpasar3 stops£1,043
Hanoi
Hanoi2 stops£1,144
Ho Chi Minh City
Ho Chi Minh City2 stops£1,097
Ko Samui
Ko Samui2 stops£1,056
Cebu City
Cebu City3 stops£1,279
Da Nang
Da Nang2 stops£6,584
Chiang Mai
Chiang Mai3 stops£1,085
Langkawi
Langkawi2 stops£1,515

Book Cheap Cardiff to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Southeast Asia

Fri, 11 Sep - Sun, 18 Oct
Multiple Airlines Logo
22:45 - 15:15
CWL
-
KUL
33h 30m
2 stops
Multiple Airlines Logo
22:00 - 21:45
KUL
-
CWL
30h 45m
3 stops
£623Multiple Airlines
Sat, 26 Sep - Mon, 26 Oct
KLM Logo
17:35 - 09:30
CWL
-
BKK
33h 55m
1 stop
KLM Logo
12:05 - 17:00
BKK
-
CWL
35h 55m
1 stop
£668KLM
Thu, 1 Oct - Sun, 11 Oct
KLM Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
KLM Logo
12:05 - 16:45
BKK
-
CWL
34h 40m
1 stop
£687KLM
Fri, 11 Sep - Sun, 18 Oct
Multiple Airlines Logo
17:15 - 08:25
CWL
-
KUL
32h 10m
3 stops
Multiple Airlines Logo
22:00 - 21:45
KUL
-
CWL
30h 45m
3 stops
£688Multiple Airlines
Thu, 1 Oct - Sun, 11 Oct
KLM Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
KLM Logo
12:05 - 16:45
BKK
-
CWL
34h 40m
1 stop
£689KLM
Thu, 1 Oct - Sun, 11 Oct
KLM Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
KLM Logo
12:05 - 16:45
BKK
-
CWL
34h 40m
1 stop
£690KLM
Fri, 25 Sep - Mon, 26 Oct
Multiple Airlines Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
Multiple Airlines Logo
12:05 - 09:50
BKK
-
CWL
28h 45m
1 stop
£691Multiple Airlines
Thu, 13 Aug - Thu, 20 Aug
WestJet Logo
11:35 - 22:10
CWL
-
SGN
52h 35m
2 stops
WestJet Logo
07:30 - 10:15
SGN
-
CWL
56h 45m
2 stops
£6,247WestJet
Thu, 30 Jul - Thu, 6 Aug
WestJet Logo
11:35 - 12:35
CWL
-
SGN
67h 00m
2 stops
WestJet Logo
07:30 - 10:15
SGN
-
CWL
56h 45m
2 stops
£6,283WestJet
Sat, 15 Aug - Sat, 22 Aug
WestJet Logo
11:35 - 12:35
CWL
-
SGN
67h 00m
2 stops
WestJet Logo
07:30 - 10:15
SGN
-
CWL
56h 45m
2 stops
£6,422WestJet
Booking Insights

KAYAK's insights & trends for Cardiff to Southeast Asia flights

Get data-powered insights and trends into flights from Cardiff to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a stopover from Cardiff to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £251, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Cardiff to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Southeast Asia is June, when tickets cost £0 (return) on average. On the other hand, the most expensive months are July and February, when the average cost of return tickets is £1,274 and £1,011 respectively.

Good to know - Cheap tickets from Cardiff to Southeast Asia

Low seasonJuly
Cheapest flight£312
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Cardiff to Bangkok Suvarnabhumi Airport

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Cardiff to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cardiff to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Cardiff to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cardiff to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Cardiff to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1533 reviews
7.2Entertainment
7.3Food
7.8Boarding
7.7Comfort
8.4Crew
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, Jun 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

Was trying to change a flight but told that Canadian and local klm systems do not interact so they could not access my booking. Overall I like klm a lot but if it was important to change flights I would be very frustrated.

KLM is my favourite airline. Never ever let us down.Staff are first class.

Pretty bad. Food was awful. drinks were scarce, as if drinking an extra drink would ruin the airline. attendants were not very helpful. likely Dutch "directedness" (I cannot be bothered). Crammed flight. Entertainment in very minimal dosage. Almost all old movies and series with 1-3 episodes only. Very limited number of options available. Jesus!! it seems you need to bring your own entertainment these days even of flights that are 13 hrs long!! I would and I will avoid in the future!

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

The business class experience is fantastic. The crew were polite but often unavailable even when I tried to call them! I even found myself bringing my used dishes and cutlery up to the crew because no one had come to collect it after over an hour.

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

Very very bad service very tight seats never ever flying with Etihad again

Etihad can improve the transfer in Abudabi gates instead of making people to climb the stairs.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports