£249 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 4/3. 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

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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Flight Deals

Cheap Flights from Cardiff to Southeast Asia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops£703
Manila
Manila2 stops£845
Singapore
Singapore1 stop£758
Phuket City
Phuket City2 stops£765
Denpasar
Denpasar3 stops£762
Hanoi
Hanoi3 stops£1,069
Ho Chi Minh City
Ho Chi Minh City3 stops£920
Ko Samui
Ko Samui2 stops£1,197
Cebu City
Cebu City2 stops£1,268
Da Nang
Da Nang2 stops£1,418
Bangkok
Bangkok2 stops£703
Manila
Manila2 stops£845
Singapore
Singapore1 stop£758
Phuket City
Phuket City2 stops£765
Denpasar
Denpasar3 stops£762
Hanoi
Hanoi3 stops£1,069
Ho Chi Minh City
Ho Chi Minh City3 stops£920
Ko Samui
Ko Samui2 stops£1,197
Cebu City
Cebu City2 stops£1,268
Da Nang
Da Nang2 stops£1,418

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, 10 Apr - Fri, 17 Apr
Multiple Airlines Logo
17:15 - 15:40
CWL
-
KUL
15h 25m
1 stop
Multiple Airlines Logo
22:00 - 17:05
KUL
-
CWL
26h 05m
2 stops
£671Multiple Airlines
Mon, 11 May - Tue, 2 Jun
KLM Logo
09:45 - 15:40
CWL
-
KUL
22h 55m
1 stop
KLM Logo
23:55 - 09:15
KUL
-
CWL
16h 20m
1 stop
£673KLM
Mon, 11 May - Tue, 2 Jun
KLM Logo
09:45 - 22:20
CWL
-
KUL
29h 35m
2 stops
KLM Logo
23:55 - 09:15
KUL
-
CWL
16h 20m
1 stop
£679KLM
Mon, 11 May - Tue, 2 Jun
KLM Logo
17:15 - 20:25
CWL
-
KUL
20h 10m
2 stops
KLM Logo
23:55 - 09:15
KUL
-
CWL
16h 20m
1 stop
£682KLM
Mon, 11 May - Tue, 2 Jun
KLM Logo
09:45 - 22:20
CWL
-
KUL
29h 35m
2 stops
KLM Logo
23:55 - 16:45
KUL
-
CWL
23h 50m
1 stop
£686KLM
Mon, 11 May - Tue, 2 Jun
KLM Logo
09:45 - 20:25
CWL
-
KUL
27h 40m
2 stops
KLM Logo
23:55 - 09:15
KUL
-
CWL
16h 20m
1 stop
£687KLM
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
23:50 - 07:05
CWL
-
BKK
25h 15m
2 stops
Multiple Airlines Logo
03:15 - 22:25
BKK
-
CWL
25h 10m
2 stops
£703Multiple Airlines
Fri, 10 Apr - Fri, 17 Apr
IndiGo Logo
09:45 - 19:30
CWL
-
HKT
27h 45m
2 stops
IndiGo Logo
08:40 - 17:05
HKT
-
CWL
38h 25m
2 stops
£852IndiGo
Mon, 15 Jun - Sun, 21 Jun
Singapore Airlines Logo
17:15 - 10:50
CWL
-
HKT
35h 35m
2 stops
Singapore Airlines Logo
18:00 - 16:45
HKT
-
CWL
28h 45m
2 stops
£1,223Singapore Airlines
Wed, 25 Mar - Sat, 4 Apr
Singapore Airlines Logo
17:25 - 01:30
CWL
-
CEB
48h 05m
2 stops
Singapore Airlines Logo
15:40 - 09:15
CEB
-
CWL
24h 35m
2 stops
£1,514Singapore Airlines
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 £290, 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 September, when tickets cost £599 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £1,145 and £1,084 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 seasonJuly
Cheapest flight£282
Best time to beat the crowds but there is an average 48% increase in price.
Most popular time to fly (33% more expensive 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.
7.7
KLMOverall score based on 1460 reviews
7.8Boarding
8.4Crew
7.3Food
7.6Comfort
7.1Entertainment
Airline reviews

Empty seats next to me - wish it had been for a longer flight!!

8.0 ExcellentAnonymous, Feb 2026
AMS - NCL
Read more KLM reviews

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

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.

Klm start boarding while somw air issue in the plan

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Awful the whole airline arrived to check baggage and board our flight and the airline desk was closed where none of the passengers could check in baggage, asked for a supervisor and was refused a supervisor, called the airlines from the airport and they refused to refund the flights for their actions in the airport, Etihad and Garuda Airlines absolutely horrible customer service all the way around.

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

Ethiad wanted to charge me $1100 for 2 checked bags on a ticket that was $550. Nother the airline or airfare assist was willing to help before arriving at the airport. All parties said it was the other responsibility to help. Never flying ethiad or using kayak again.

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

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

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

Was so disappointing. Business class with no TV, uncomfortable seats. Had much higher expectations.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports