Cheap flights from Cardiff to Southeast Asia from £496

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BKK
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

£585

One-way from

£496

Popular in

July

Cheapest in

September

Average price

£621
15/10-22/10
  • 15/10-22/10
  • 4 total stops
  • 57h 35m total
  • Cardiff to Southeast Asia
15/12
  • 15/12
  • 3 total stops
  • 40h 40m total
  • Cardiff to Southeast Asia
Highest demand for flights based on searches. 5% potential increase in price (£32 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 18 September 2025.

Thu 30/1010:30CWL - SIN
2 stops23h 05mMultiple Airlines
Thu 6/1123:25SIN - CWL
2 stops30h 35mMultiple Airlines
Deal found 15/9£520
Wed 15/1020:30CWL - BKK
2 stops28h 50mMultiple Airlines
Wed 22/1020:55BKK - CWL
2 stops28h 45mMultiple Airlines
Deal found 17/9£585
Sat 15/1120:05CWL - BKK
2 stops27h 35mMultiple Airlines
Sat 22/1120:40BKK - CWL
3 stops31h 15mMultiple Airlines
Deal found 17/9£624
Sat 1/1120:05CWL - SIN
2 stops34h 50mMultiple Airlines
Sat 8/1119:25SIN - CWL
2 stops33h 30mMultiple Airlines
Deal found 17/9£648
Sun 28/911:00CWL - BKK
2 stops19h 55mMultiple Airlines
Sat 25/1019:10BKK - CWL
3 stops21h 40mMultiple Airlines
Deal found 16/9£656
Thu 30/1017:25CWL - SIN
1 stop14h 50mKLM
Wed 5/1101:40SIN - CWL
1 stop16h 10mKLM
Deal found 15/9£687
Sat 1/1110:20CWL - BKK
2 stops34h 45mMultiple Airlines
Sat 8/1105:05BKK - CWL
2 stops35h 45mMultiple Airlines
Deal found 17/9£732
Sat 1/1110:20CWL - MNL
2 stops27h 10mMultiple Airlines
Sat 8/1107:15MNL - CWL
2 stops34h 35mMultiple Airlines
Deal found 17/9£806
Sat 1/1110:20CWL - SIN
1 stop21h 55mKLM
Sat 8/1122:50SIN - CWL
2 stops19h 00mKLM
Deal found 17/9£843
Wed 15/1020:30CWL - DMK
3 stops32h 35mMultiple Airlines
Wed 22/1011:20DMK - CWL
3 stops38h 20mMultiple Airlines
Deal found 17/9£848
Sun 28/909:50CWL - BKK
1 stop17h 40mKLM
Sat 25/1012:05BKK - CWL
1 stop28h 45mKLM
Deal found 16/9£861
Mon 20/1013:10CWL - DPS
3 stops27h 30mMultiple Airlines
Mon 27/1011:35DPS - CWL
3 stops41h 45mMultiple Airlines
Deal found 16/9£908

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 18 September 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

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Thu 30/10

10:30-17:35

2 stops23h 05m

Singapore Changi

Thu 6/11

23:25-22:00

2 stops30h 35m

£520

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 15/11

20:05-06:40

2 stops27h 35m

Bangkok Suvarnabhumi

Sat 22/11

20:40-20:55

3 stops31h 15m

£624

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Sat 1/11

20:05-14:55

2 stops34h 50m

Singapore Changi

Sat 8/11

19:25-20:55

2 stops33h 30m

£648

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Thu 30/10

17:25-16:15

1 stop14h 50m

Singapore Changi

Wed 5/11

01:40-09:50

1 stop16h 10m

£687

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 1/11

10:20-04:05

2 stops34h 45m

Bangkok Suvarnabhumi

Sat 8/11

05:05-09:50

2 stops35h 45m

£732

CardiffDenpasar

CWL - DPS

CWLDPS

Cardiff Wales

Wed 14/1

10:20-12:05

2 stops41h 45m

Denpasar Bali Ngurah Rai

Wed 21/1

21:40-09:50

2 stops20h 10m

£735

CardiffDenpasar

CWL - DPS

CWLDPS

Cardiff Wales

Thu 5/3

17:25-20:20

2 stops18h 55m

Denpasar Bali Ngurah Rai

Mon 9/3

21:40-09:50

2 stops20h 10m

£803

CardiffManila

CWL - MNL

CWLMNL

Cardiff Wales

Sat 1/11

10:20-21:30

2 stops27h 10m

Manila Ninoy Aquino Intl

Sat 8/11

07:15-09:50

2 stops34h 35m

£806

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Tue 13/1

17:15-07:30

2 stops31h 15m

Bangkok Suvarnabhumi

Tue 10/2

09:30-09:50

2 stops31h 20m

£810

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 15/1

10:20-07:10

1 stop13h 50m

Bangkok Suvarnabhumi

Wed 11/2

09:15-16:55

1 stop14h 40m

£817

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 29 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 18 September 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.

Overall

7.8

Boarding

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Overall

7.8

Boarding

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Overall

7.8

Boarding

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 £687, 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?

  • 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.

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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£555Average£979FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£599Average£756FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

Fly with Cheapflights

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

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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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