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Cheap flights from Cardiff to Southeast Asia from £313

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BKK
31 Aug — 7 Sep1
1 adult

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 26 August 2025.

Round-trip from

£576

One-way from

£313

Popular in

July

Cheapest in

May

Average price

£669
20/9-27/9
  • 20/9-27/9
  • 6 total stops
  • 48h 10m total
  • Cardiff to Southeast Asia
Search Deals
1/12
  • 1/12
  • 3 total stops
  • 49h 45m total
  • Cardiff to Southeast Asia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£2 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Cardiff to Southeast Asia

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 26 August 2025.

Sat 20/909:00CWL - BKK
3 stops26h 45mMultiple Airlines
Sat 27/919:10BKK - CWL
3 stops21h 25mMultiple Airlines
Deal found 23/8£576
Thu 9/1007:55CWL - BKK
2 stops23h 00mMultiple Airlines
Thu 16/1009:05BKK - CWL
2 stops32h 55mMultiple Airlines
Deal found 25/8£588
Thu 9/1007:55CWL - HKT
2 stops28h 55mMultiple Airlines
Thu 16/1009:20HKT - CWL
2 stops32h 40mMultiple Airlines
Deal found 25/8£602
Fri 19/917:15CWL - BKK
1 stop34h 15mKLM
Wed 1/1011:35BKK - CWL
2 stops35h 10mKLM
Deal found 23/8£626
Sun 28/909:50CWL - BKK
1 stop17h 40mKLM
Wed 8/1012:05BKK - CWL
1 stop27h 10mKLM
Deal found 23/8£640
Tue 18/1110:20CWL - BKK
2 stops29h 10mMultiple Airlines
Tue 2/1202:10BKK - CWL
2 stops38h 40mMultiple Airlines
Deal found 23/8£647
Tue 18/1117:25CWL - BKK
2 stops32h 50mKLM
Wed 3/1211:35BKK - CWL
2 stops29h 15mKLM
Deal found 23/8£672
Wed 31/1217:25CWL - BKK
2 stops31h 05mKLM
Thu 15/109:30BKK - CWL
2 stops31h 20mKLM
Deal found 24/8£719
Mon 20/1017:15CWL - DPS
2 stops39h 15mKLM
Mon 27/1021:40DPS - CWL
2 stops20h 10mKLM
Deal found 24/8£804
Mon 8/913:10CWL - DMK
3 stops27h 00mMultiple Airlines
Mon 15/908:10DMK - CWL
3 stops37h 45mMultiple Airlines
Deal found 25/8£868
Tue 23/917:15CWL - CNX
3 stops38h 30mMultiple Airlines
Tue 30/911:55CNX - CWL
3 stops34h 50mMultiple Airlines
Deal found 25/8£878
Thu 9/1017:15CWL - DPS
2 stops38h 00mKLM
Thu 16/1012:55DPS - CWL
2 stops27h 20mKLM
Deal found 25/8£879

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 26 August 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

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 20/9

09:00-17:45

3 stops26h 45m

Bangkok Suvarnabhumi

Sat 27/9

19:10-10:35

3 stops21h 25m

£576

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 9/10

07:55-12:55

2 stops23h 00m

Bangkok Suvarnabhumi

Thu 16/10

09:05-12:00

2 stops32h 55m

£588

CardiffPhuket City

CWL - HKT

CWLHKT

Cardiff Wales

Thu 9/10

07:55-18:50

2 stops28h 55m

Phuket City

Thu 16/10

09:20-12:00

2 stops32h 40m

£602

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Fri 19/9

17:15-09:30

1 stop34h 15m

Bangkok Suvarnabhumi

Wed 1/10

11:35-16:45

2 stops35h 10m

£626

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sun 28/9

09:50-09:30

1 stop17h 40m

Bangkok Suvarnabhumi

Wed 8/10

12:05-09:15

1 stop27h 10m

£640

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Tue 18/11

10:20-22:30

2 stops29h 10m

Bangkok Suvarnabhumi

Tue 2/12

02:10-09:50

2 stops38h 40m

£647

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Tue 18/11

17:25-09:15

2 stops32h 50m

Bangkok Suvarnabhumi

Wed 3/12

11:35-09:50

2 stops29h 15m

£672

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Wed 31/12

17:25-07:30

2 stops31h 05m

Bangkok Suvarnabhumi

Thu 15/1

09:30-09:50

2 stops31h 20m

£719

CardiffDenpasar

CWL - DPS

CWLDPS

Cardiff Wales

Mon 20/10

17:15-15:30

2 stops39h 15m

Denpasar Bali Ngurah Rai

Mon 27/10

21:40-09:50

2 stops20h 10m

£804

CardiffBangkok

CWL - DMK

CWLDMK

Cardiff Wales

Mon 8/9

13:10-22:10

3 stops27h 00m

Bangkok Don Mueang Intl

Mon 15/9

08:10-15:55

3 stops37h 45m

£868

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 44 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 £717). Flying from Cardiff to Southeast Asia in December is currently the most expensive (average of £1,123). 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 26 August 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
7.8
Good
1,387 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,387 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Etihad Airways
7.4
Good
1,235 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 £626, KLM can have you in Southeast Asia from Cardiff in 34h 15m. Cardiff and Southeast Asia are separated by a distance of 6066 mi.

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

    While some choose either Cardiff Wales - Bangkok Don Mueang Intl or Cardiff Wales - Manila Ninoy Aquino Intl, 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 £717). Flying from Cardiff to Southeast Asia in December is currently the most expensive (average of £1,123). 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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Alternative routes for Cardiff to Southeast Asia

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 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£561Average£1,015FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£606Average£769FlexibilityNo 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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