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Cheap flights from Cardiff to Southeast Asia from £264

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BKK
21 Aug — 28 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 22 July 2026.

Fri 4/922:45
CWL
-
HKT
2 stops31h 45m
Multiple Airlines
Fri 11/909:25
HKT
-
CWL
2 stops18h 55m
Multiple Airlines
Deal found 21/7£593
Sat 29/807:30
CWL
-
BKK
2 stops22h 50m
Multiple Airlines
Mon 7/921:00
BKK
-
CWL
2 stops31h 50m
Multiple Airlines
Deal found 21/7£596
Mon 7/922:10
CWL
-
BKK
2 stops27h 25m
Multiple Airlines
Wed 16/903:15
BKK
-
CWL
2 stops25h 10m
Multiple Airlines
Deal found 21/7£613
Sat 3/1009:45
CWL
-
BKK
2 stops32h 10m
Multiple Airlines
Sat 31/1010:20
BKK
-
CWL
3 stops44h 05m
Multiple Airlines
Deal found 20/7£623
Sat 3/1007:30
CWL
-
BKK
2 stops22h 50m
Multiple Airlines
Thu 15/1003:15
BKK
-
CWL
2 stops25h 05m
Multiple Airlines
Deal found 19/7£656
Thu 8/1022:50
CWL
-
HKT
2 stops31h 40m
Multiple Airlines
Thu 22/1016:00
HKT
-
CWL
3 stops36h 20m
Multiple Airlines
Deal found 20/7£662
Mon 7/917:15
CWL
-
BKK
1 stop34h 15m
KLM
Thu 17/912:05
BKK
-
CWL
1 stop27h 10m
KLM
Deal found 21/7£670
Mon 31/822:25
CWL
-
BKK
2 stops31h 45m
Multiple Airlines
Sun 6/903:15
BKK
-
CWL
2 stops24h 30m
Multiple Airlines
Deal found 17/7£670
Tue 15/909:45
CWL
-
BKK
1 stop17h 45m
KLM
Tue 13/1012:05
BKK
-
CWL
1 stop34h 40m
KLM
Deal found 21/7£674
Sat 29/817:35
CWL
-
BKK
1 stop33h 55m
KLM
Mon 7/912:05
BKK
-
CWL
1 stop27h 10m
KLM
Deal found 21/7£677
Wed 16/917:15
CWL
-
BKK
1 stop34h 15m
KLM
Tue 13/1012:05
BKK
-
CWL
1 stop34h 40m
KLM
Deal found 21/7£685
Fri 4/922:45
CWL
-
SIN
2 stops27h 55m
Multiple Airlines
Fri 11/905:40
SIN
-
CWL
3 stops23h 40m
Multiple Airlines
Deal found 21/7£691

Find 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 22 July 2026.

Round-trip from

£593

One-way from

£264

Popular in

December

Cheapest in

September

Average price

£864
4/9-11/9
  • 4/9-11/9
  • 4 total stops
  • 50h 40m total
  • Cardiff to Southeast Asia
Search Deals
15/9
  • 15/9
  • 3 total stops
  • 48h 40m total
  • Cardiff to Southeast Asia
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£114 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
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 22 July 2026.
Use the filters below to find and compare flights from Cardiff to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Mon 31/8

22:25-12:10

2 stops31h 45m

Bangkok Suvarnabhumi

Sun 6/9

03:15-21:45

2 stops24h 30m

£670

CardiffPhuket City

CWL - HKT

CWLHKT

Cardiff Wales

Fri 4/9

09:45-18:20

3 stops26h 35m

Phuket City

Fri 11/9

09:25-22:20

2 stops18h 55m

£683

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Wed 16/9

17:15-09:30

1 stop34h 15m

Bangkok Suvarnabhumi

Wed 14/10

12:05-16:45

1 stop34h 40m

£685

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Wed 16/9

17:15-09:30

1 stop34h 15m

Bangkok Suvarnabhumi

Tue 13/10

12:05-16:45

1 stop34h 40m

£685

CardiffPhuket City

CWL - HKT

CWLHKT

Cardiff Wales

Thu 8/10

09:45-23:50

3 stops32h 05m

Phuket City

Thu 22/10

08:40-22:20

3 stops43h 40m

£687

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Fri 4/9

22:45-09:40

2 stops27h 55m

Singapore Changi

Fri 11/9

05:40-22:20

3 stops23h 40m

£691

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 3/10

07:30-12:20

2 stops22h 50m

Bangkok Suvarnabhumi

Fri 30/10

03:00-23:25

2 stops27h 25m

£705

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Tue 15/9

17:15-09:15

2 stops34h 00m

Bangkok Suvarnabhumi

Wed 14/10

12:05-09:15

1 stop27h 10m

£709

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sun 11/10

09:50-09:30

1 stop17h 40m

Bangkok Suvarnabhumi

Thu 29/10

12:05-09:50

1 stop28h 45m

£712

CardiffBangkok

CWL - DMK

CWLDMK

Cardiff Wales

Sat 29/8

17:35-23:30

3 stops23h 55m

Bangkok Don Mueang Intl

Mon 7/9

06:30-21:45

3 stops21h 15m

£721

Flights are sorted by cheapest return flights first.

Deals found on 21/7

Showing 1-10 of 34 resultsSorted by cheapest first
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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

No data available for this route at this time. Please check back soon.

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 22 July 2026.
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
1,544 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
KLM
7.8
Good
1,544 reviews
KLM
7.8
Good
1,544 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Etihad Airways
7.3
Good
1,484 reviews
KLM
7.8
Good
1,544 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

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 £685, 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 - Singapore Changi or Cardiff Wales - Phuket City, 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.

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 22 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£574Average£695FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
KLMCheapest£613Average£945FlexibilityNo cancel feeOn-time75%
Search KLM 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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