£377 Find Cheap Flights from Cardiff to Southeast Asia

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 14/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Cardiff

Cheapest return prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop£707
Manila
Manila3 stops£794
Singapore
Singapore3 stops£834
Denpasar
Denpasar3 stops£879
Phuket City
Phuket City2 stops£815
Ho Chi Minh City
Ho Chi Minh City2 stops£1,676
Hanoi
Hanoi3 stops£1,160
Ko Samui
Ko Samui2 stops£999
Da Nang
Da Nang2 stops£1,042
Penang
Penang3 stops£976
Bangkok
Bangkok1 stop£707
Manila
Manila3 stops£794
Singapore
Singapore3 stops£834
Denpasar
Denpasar3 stops£879
Phuket City
Phuket City2 stops£815
Ho Chi Minh City
Ho Chi Minh City2 stops£1,676
Hanoi
Hanoi3 stops£1,160
Ko Samui
Ko Samui2 stops£999
Da Nang
Da Nang2 stops£1,042
Penang
Penang3 stops£976

Cheap Flights from Cardiff to Southeast Asia

 
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

Wed, 17 Sep - Sun, 21 Sep
KLM Logo
09:50 - 09:30CWL-BKK
17h 40m1 stop
KLM Logo
12:05 - 09:15BKK-CWL
27h 10m1 stop
£707KLM
Find Deal
Wed, 17 Sep - Sun, 21 Sep
KLM Logo
09:50 - 09:30CWL-BKK
17h 40m1 stop
KLM Logo
12:05 - 09:15BKK-CWL
27h 10m1 stop
£708KLM
Find Deal
Wed, 17 Sep - Sun, 21 Sep
KLM Logo
09:50 - 09:30CWL-BKK
17h 40m1 stop
KLM Logo
12:05 - 09:15BKK-CWL
27h 10m1 stop
£709KLM
Find Deal
Wed, 26 Nov - Thu, 4 Dec
KLM Logo
10:20 - 10:05CWL-BKK
16h 45m1 stop
KLM Logo
10:10 - 09:50BKK-CWL
30h 40m2 stops
£716KLM
Find Deal
Wed, 26 Nov - Thu, 4 Dec
 Logo
17:25 - 09:15CWL-BKK
56h 50m2 stops
 Logo
10:10 - 09:50BKK-CWL
30h 40m2 stops
Wed, 17 Sep - Sun, 21 Sep
Air France Logo
09:50 - 09:15CWL-BKK
17h 25m2 stops
Air France Logo
11:35 - 16:45BKK-CWL
35h 10m2 stops
£730Air France
Find Deal
Wed, 26 Nov - Thu, 4 Dec
KLM Logo
10:20 - 10:05CWL-BKK
16h 45m1 stop
KLM Logo
12:15 - 09:50BKK-CWL
28h 35m1 stop
£743KLM
Find Deal
Sat, 29 Nov - Sun, 14 Dec
KLM Logo
17:25 - 10:05CWL-BKK
33h 40m1 stop
KLM Logo
12:15 - 16:45BKK-CWL
35h 30m1 stop
£775KLM
Find Deal
Wed, 17 Sep - Sun, 21 Sep
Air France Logo
09:50 - 09:15CWL-BKK
17h 25m2 stops
Air France Logo
11:35 - 16:45BKK-CWL
35h 10m2 stops
£785Air France
Find Deal
Wed, 17 Sep - Sun, 21 Sep
Air France Logo
09:50 - 09:15CWL-BKK
17h 25m2 stops
Air France Logo
11:35 - 16:45BKK-CWL
35h 10m2 stops
£786Air France
Find Deal
Useful Info

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 £302, 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 May, when tickets cost £611 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £1,105 and £1,059 respectively.

How far in advance should I book a flight from Cardiff to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below-average price on the flight from Cardiff to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know - Cheap tickets from Cardiff to Southeast Asia

Low seasonOctober
High seasonApril
Cheapest flight£377
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from Cardiff to Bangkok Don Mueang Intl

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.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost £1,081 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is £1,191.

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 1372 reviews
7.3Food
7.7Comfort
7.8Boarding
7.1Entertainment
8.4Crew
Airline reviews

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

6.0 GoodKathleen P, Jun 2025EDI - AMS
Read more KLM reviews

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

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

I had a terrible experience checking in at the airport for my flight. I booked my ticket initially through Kayak while it was promoted as a ticket that offers a carry on and 2 suit cases. (I have a screen shot as a proof of it) I selected it to buy three tickets and paid online. Couple of minutes later airfare assist which is the OTA offering the ticket called me saying My card declined. So I used a different card that went through. I was surprised that they increased the price ticket by a $167. They said the ticket no longer exists and because my card declined I had to buy a new one. So I did. The day my family and I were traveling I could not check in and when I went to the airport I was shocked to be told my ticket had no bags allowed and must pay $200 per bag for three people 6 bags mean I have to pay $1200. I called the travel agency as I feel I was scammed the confirmation didn’t say anything about the bags and they never told me the new ticket doesn’t not include any bag so they changed it after I selected it on your app without informing me. Very sneaky. The travel agency said they will reimburse me only for one bag person. Which means I still paid $600 I still feel very disappointed to pay such an expense. I have always used Kayak to buy my flight tickets and telling everyone how good your rates and app are however after this I feel I was mislead and paid more for something I should not have to. You allowing such an agency on your platform will surely hurt your reputation and level of integrity. I have all the proofs from the screen shot to the confirmation email from them, the or email offering to reimburse o e bag per person and the $1200 bag fees receipts that I paid on the desk. I must be refund the full amount and I look forward to your response.

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Took a long time for boarding. The flight was comfortable.

Should have had business class line in immigration. Food quality suboptimal

The seat was like there is no leg space....there were no proper option for food in the airline. It seemed like the airline was at brink of bankruptcy. The crew was helpful except for a few.

Boarding was efficient, had to check in cabin luggage. Seats were narrow, food was more in quantity, received cabin luggage on the luggage belt which was fine.

Needs better seat for business class. My seat was falling apart. Also no WiFi on that flight

Boarding catastrophic let alone have to claimb the plain rather than using jetway. 5.5 hr delay leaving had to do stop in Lgw for a new crew which further compounded the delay. Connecting flight would not wait and had to pend a night in a hotel. Curiously my seat would not go full flat.

I did not have a good experience in both flights of Etihad. First of all, when I was booking the flight, there were two options. The first option was a cheaper flight with longer layover (9 hrs), or a more expensive flight with shorter layover (2 hrs). I booked the expensive flight with shorter layover because I wanted a more comfortable trip. A few days before the trip, Etihad informed me that the departure time of my first flight will change 7 hours earlier, leading to an 9 hour layover, without giving me another option nor reimbursing me for the extra cost. They didn’t even send me an apologetic email for this change. Regarding the flight experience, I would rate it as mediocre. This is mostly because the pilots of both flights did their best to give us the worst approach to airports that I have ever experienced. In the case of the first flight they had to aboard the landing and took off again right before touching the landing strip. The captain said that it was due to wind conditions but the second time the pilot followed the same direction as the first time to land the plane.

Etihad flight sector is a local . .give the same quality upto destination

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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