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Cheap flights from Cardiff to Southeast Asia from £306

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BKK
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Cardiff to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Southeast Asia
Explore the most affordable flight options available from Cardiff to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 November 2025.

Wed 26/1117:25CWL - DPS
2 stops18h 55mKLM
Wed 3/1221:40DPS - CWL
2 stops27h 15mKLM
Deal found 22/11£699
Fri 28/1110:20CWL - DPS
2 stops43h 45mKLM
Fri 5/1221:40DPS - CWL
2 stops27h 15mKLM
Deal found 23/11£798
Wed 3/1217:25CWL - SIN
1 stop14h 50mKLM
Tue 30/1201:40SIN - CWL
1 stop16h 10mKLM
Deal found 24/11£801
Thu 27/1117:25CWL - BKK
1 stop33h 40mKLM
Thu 4/1211:35BKK - CWL
2 stops36h 10mKLM
Deal found 22/11£821
Thu 27/1110:20CWL - BKK
3 stops24h 45mMultiple Airlines
Wed 24/1209:25BKK - CWL
3 stops31h 25mMultiple Airlines
Deal found 22/11£830
Wed 26/1110:20CWL - KUL
1 stop21h 20mKLM
Sun 30/1123:50KUL - CWL
1 stop18h 00mKLM
Deal found 22/11£832
Wed 3/1210:20CWL - MNL
2 stops25h 10mKLM
Sun 7/1222:00MNL - CWL
2 stops43h 50mKLM
Deal found 21/11£866
Wed 3/1210:20CWL - SIN
3 stops27h 25mMultiple Airlines
Tue 30/1200:05SIN - CWL
2 stops23h 25mMultiple Airlines
Deal found 24/11£897
Thu 27/1117:25CWL - BKK
1 stop33h 40mKLM
Wed 24/1209:15BKK - CWL
1 stop14h 40mKLM
Deal found 22/11£900
Thu 27/1110:20CWL - BKK
3 stops24h 40mMultiple Airlines
Thu 4/1220:40BKK - CWL
3 stops32h 20mMultiple Airlines
Deal found 22/11£940
Fri 12/1217:25CWL - BKK
3 stops35h 20mMultiple Airlines
Sun 11/101:05BKK - CWL
3 stops46h 00mMultiple Airlines
Deal found 23/11£946
Sun 7/1210:20CWL - SGN
2 stops24h 50mKLM
Thu 11/1216:40SGN - CWL
2 stops31h 05mKLM
Deal found 22/11£975

Cheap flight deals from Cardiff to Southeast Asia

Keep the following information in mind while searching for Cardiff to Southeast Asia flight deals. Data was last updated 25 November 2025.

Round-trip from

£628

One-way from

£306

Popular in

July

Cheapest in

September

Average price

£850
12/1-22/1
  • 12/1-22/1
  • 4 total stops
  • 58h 45m total
  • Cardiff to Southeast Asia
Search Deals
1/3
  • 1/3
  • 3 total stops
  • 54h 50m total
  • Cardiff to Southeast Asia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 November 2025.
Use the filters below to find and compare flights from Cardiff to Southeast Asia that are best for you.

Fly from

Cardiff

Fly to

Southeast Asia

Route

Depart

Return

Price

CardiffPhuket City

CWL - HKT

CWLHKT

Cardiff Wales

Mon 12/1

17:15-10:05

2 stops33h 50m

Phuket City

Thu 22/1

22:50-16:45

2 stops24h 55m

£628

CardiffKuala Lumpur

CWL - KUL

CWLKUL

Cardiff Wales

Wed 7/1

17:25-18:45

2 stops17h 20m

Kuala Lumpur Intl

Wed 14/1

20:30-09:50

2 stops21h 20m

£644

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Wed 14/1

17:25-16:15

1 stop14h 50m

Singapore Changi

Sun 18/1

22:50-16:45

2 stops25h 55m

£714

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 8/1

10:20-00:55

2 stops31h 35m

Bangkok Suvarnabhumi

Wed 14/1

01:55-09:50

2 stops38h 55m

£749

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Thu 29/1

10:20-16:55

2 stops22h 35m

Singapore Changi

Sun 1/2

01:40-09:50

1 stop16h 10m

£750

CardiffPhuket City

CWL - HKT

CWLHKT

Cardiff Wales

Wed 7/1

17:25-21:45

2 stops45h 20m

Phuket City

Wed 14/1

11:05-16:55

2 stops36h 50m

£770

CardiffKuala Lumpur

CWL - KUL

CWLKUL

Cardiff Wales

Thu 5/3

10:20-18:45

2 stops24h 25m

Kuala Lumpur Intl

Mon 9/3

23:50-09:50

1 stop18h 00m

£799

CardiffDenpasar

CWL - DPS

CWLDPS

Cardiff Wales

Thu 19/3

10:20-14:05

2 stops43h 45m

Denpasar Bali Ngurah Rai

Mon 23/3

15:15-16:55

2 stops33h 40m

£800

CardiffDenpasar

CWL - DPS

CWLDPS

Cardiff Wales

Tue 6/1

17:25-20:20

2 stops18h 55m

Denpasar Bali Ngurah Rai

Tue 13/1

21:40-09:50

2 stops20h 10m

£804

CardiffKuala Lumpur

CWL - KUL

CWLKUL

Cardiff Wales

Wed 7/1

17:25-20:45

2 stops19h 20m

Kuala Lumpur Intl

Wed 14/1

23:50-09:50

1 stop18h 00m

£807

Flights are sorted by cheapest return flights first.

Deals found on 24/11

Showing 1-10 of 43 results
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Best time to book a flight from Cardiff to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Cardiff with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to Southeast Asia

What is the cheapest month to book a flight from Cardiff to Southeast Asia?

Currently, May is the cheapest month in which you can book a flight from Cardiff to Southeast Asia (average of £337). Flying from Cardiff to Southeast Asia in August is currently the most expensive (average of £637). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 25 November 2025.
Check out reviews from past customers who have flown with KLM and Etihad Airways from Cardiff to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,420 reviews
Check prices

Crew

8.4

Boarding

7.8

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,420 reviews
KLM
7.7
Good
1,420 reviews
Check prices

Crew

8.4

Boarding

7.8

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Etihad Airways
7.4
Good
1,312 reviews
KLM
7.7
Good
1,420 reviews
Check prices

Crew

8.4

Boarding

7.8

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cardiff to Southeast Asia?

    Located just 9.1 mi from the city center, Cardiff Wales (CWL) is the airport most travelers will use when flying to Southeast Asia from Cardiff.

  • How long is the flight from Cardiff to Southeast Asia?

    For as low as £714, KLM can have you in Southeast Asia from Cardiff in 14h 50m. Cardiff and Southeast Asia are separated by a distance of 6879 mi.

  • What are the most popular routes from Cardiff to Southeast Asia?

    While some choose either Cardiff Wales - Phuket City or Cardiff Wales - Singapore Changi, Cardiff Wales - Bangkok Suvarnabhumi is the most popular route from Cardiff to Southeast Asia.

  • Can I find deals for flights from Cardiff to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Cardiff to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Southeast Asia.

  • Can I find deals for business class flights from Cardiff to Southeast Asia?

    Yes. Cheapflights offers flight deals from Cardiff to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to Southeast Asia?

    Currently, May is the cheapest month in which you can book a flight from Cardiff to Southeast Asia (average of £337). Flying from Cardiff to Southeast Asia in August is currently the most expensive (average of £637). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Cardiff to Southeast Asia

Discover the top 2 airlines that operate flights from Cardiff to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£584Average£1,044FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£624Average£757FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Southeast Asia?

Cheapflights helps you search for flights from Cardiff to Southeast Asia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from Cardiff by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Cardiff to Southeast Asia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Southeast Asia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Cardiff to Southeast Asia become cheaper?

Yes! Start tracking prices for Cardiff to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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