£301 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 15/9. 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£751
Manila
Manila2 stops£920
Singapore
Singapore2 stops£895
Phuket City
Phuket City2 stops£819
Denpasar
Denpasar2 stops£939
Hanoi
Hanoi3 stops£1,439
Ho Chi Minh City
Ho Chi Minh City2 stops£1,271
Ko Samui
Ko Samui2 stops£1,387
Da Nang
Da Nang3 stops£1,503
Krabi
Krabi3 stops£1,599
Langkawi
Langkawi3 stops£1,823
Bangkok
Bangkok2 stops£751
Manila
Manila2 stops£920
Singapore
Singapore2 stops£895
Phuket City
Phuket City2 stops£819
Denpasar
Denpasar2 stops£939
Hanoi
Hanoi3 stops£1,439
Ho Chi Minh City
Ho Chi Minh City2 stops£1,271
Ko Samui
Ko Samui2 stops£1,387
Da Nang
Da Nang3 stops£1,503
Krabi
Krabi3 stops£1,599
Langkawi
Langkawi3 stops£1,823

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

Wed, 7 Oct - Thu, 19 Nov
KLM Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
KLM Logo
12:05 - 09:50
BKK
-
CWL
28h 45m
1 stop
£751KLM
Tue, 13 Oct - Tue, 10 Nov
KLM Logo
09:45 - 09:15
CWL
-
BKK
17h 30m
2 stops
KLM Logo
09:35 - 09:50
BKK
-
CWL
31h 15m
2 stops
£777KLM
Wed, 7 Oct - Thu, 19 Nov
KLM Logo
17:15 - 09:15
CWL
-
BKK
34h 00m
2 stops
KLM Logo
11:35 - 09:50
BKK
-
CWL
29h 15m
2 stops
£778KLM
Tue, 30 Jun - Tue, 7 Jul
KLM Logo
09:45 - 09:30
CWL
-
BKK
17h 45m
1 stop
KLM Logo
12:05 - 09:15
BKK
-
CWL
27h 10m
1 stop
£783KLM
Tue, 13 Oct - Tue, 10 Nov
KLM Logo
09:45 - 09:30
CWL
-
BKK
17h 45m
1 stop
KLM Logo
12:05 - 17:00
BKK
-
CWL
35h 55m
1 stop
£792KLM
Tue, 30 Jun - Tue, 7 Jul
KLM Logo
09:45 - 09:30
CWL
-
BKK
17h 45m
1 stop
KLM Logo
11:25 - 16:45
BKK
-
CWL
35h 20m
2 stops
£800KLM
Thu, 1 Oct - Thu, 8 Oct
Multiple Airlines Logo
09:45 - 18:50
CWL
-
HKT
27h 05m
2 stops
Multiple Airlines Logo
20:30 - 16:45
HKT
-
CWL
26h 15m
2 stops
£834Multiple Airlines
Thu, 1 Oct - Thu, 15 Oct
Multiple Airlines Logo
09:45 - 18:50
CWL
-
HKT
27h 05m
2 stops
Multiple Airlines Logo
09:20 - 09:15
HKT
-
CWL
29h 55m
2 stops
£835Multiple Airlines
Mon, 22 Jun - Sun, 5 Jul
Air France Logo
17:15 - 18:30
CWL
-
SIN
18h 15m
2 stops
Air France Logo
10:50 - 16:45
SIN
-
CWL
36h 55m
2 stops
£895Air France
Thu, 9 Jul - Thu, 23 Jul
WestJet Logo
11:35 - 10:35
CWL
-
HAN
65h 00m
2 stops
WestJet Logo
12:05 - 10:15
HAN
-
CWL
52h 10m
2 stops
£5,968WestJet
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 £235, 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 £621 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of return tickets is £1,267 and £944 respectively.

Good to know - Cheap tickets from Cardiff to Southeast Asia

Low seasonFebruary
Cheapest flight£301
Best time to beat the crowds (6% less expensive on average)
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 1526 reviews
7.8Boarding
8.4Crew
7.3Food
7.7Comfort
7.2Entertainment
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Brand new plane lots of room the snack was very flavourful and enjoyable

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

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 on my previous leg, had to run to catch my flight. But that happens. Overall ok.

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.

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

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

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

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 !

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.

No entertainment except on app. No outlets working to charge. Good service

Dirty and smelly lavatory and toilets in Wamos Air operated flights

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports