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Cheap flights from Cardiff to Southeast Asia from £314

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BKK
18 Dec — 25 Dec1
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 18 November 2025.

Thu 4/1217:25CWL - SIN
1 stop14h 50mKLM
Sun 7/1222:50SIN - CWL
2 stops19h 00mKLM
Deal found 15/11£728
Fri 21/1122:25CWL - BKK
2 stops32h 45mMultiple Airlines
Fri 28/1114:40BKK - CWL
3 stops33h 15mMultiple Airlines
Deal found 16/11£738
Wed 19/1110:20CWL - KUL
2 stops24h 25mKLM
Tue 25/1123:50KUL - CWL
1 stop25h 05mKLM
Deal found 17/11£746
Thu 4/1210:20CWL - SIN
3 stops27h 25mMultiple Airlines
Sun 7/1223:55SIN - CWL
2 stops31h 10mMultiple Airlines
Deal found 15/11£838
Sat 22/1120:05CWL - BKK
3 stops30h 45mMultiple Airlines
Fri 28/1100:05BKK - CWL
2 stops26h 35mMultiple Airlines
Deal found 17/11£881
Sat 22/1117:25CWL - BKK
2 stops32h 50mKLM
Sat 29/1112:15BKK - CWL
1 stop28h 35mKLM
Deal found 17/11£894
Sat 22/1120:05CWL - HKT
2 stops27h 10mMultiple Airlines
Sat 29/1121:50HKT - CWL
3 stops43h 00mMultiple Airlines
Deal found 17/11£947
Wed 31/1207:55CWL - HKT
3 stops30h 50mMultiple Airlines
Wed 7/111:05HKT - CWL
3 stops30h 00mMultiple Airlines
Deal found 16/11£950
Mon 15/1210:20CWL - HKT
3 stops23h 55mMultiple Airlines
Mon 22/1218:55HKT - CWL
3 stops33h 40mMultiple Airlines
Deal found 17/11£969
Thu 27/1110:20CWL - BKK
1 stop16h 45mKLM
Sat 29/1112:15BKK - CWL
1 stop28h 35mKLM
Deal found 16/11£988
Fri 21/1117:15CWL - BKK
1 stop33h 50mKLM
Fri 28/1111:35BKK - CWL
2 stops53h 15mKLM
Deal found 16/11£1,028
Wed 31/1210:20CWL - SIN
3 stops27h 25mMultiple Airlines
Wed 7/119:25SIN - CWL
2 stops22h 40mMultiple Airlines
Deal found 16/11£1,103

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 November 2025.

Round-trip from

£628

One-way from

£314

Popular in

July

Cheapest in

September

Average price

£846
KLM
  • KLM
  • 7/5-28/5
  • 2 total stops
  • 52h 20m total
  • Cardiff to Southeast Asia
Search Deals
15/3
  • 15/3
  • 3 total stops
  • 54h 50m total
  • Cardiff to Southeast Asia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£32 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 18 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

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 16/5

17:35-09:30

1 stop33h 55m

Bangkok Suvarnabhumi

Sat 30/5

12:05-16:45

1 stop34h 40m

£628

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 7/5

09:50-09:30

1 stop17h 40m

Bangkok Suvarnabhumi

Thu 28/5

12:05-16:45

1 stop34h 40m

£628

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Sat 9/5

17:35-09:30

1 stop33h 55m

Bangkok Suvarnabhumi

Tue 26/5

12:05-09:15

1 stop27h 10m

£636

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 7/5

09:50-09:30

1 stop17h 40m

Bangkok Suvarnabhumi

Tue 26/5

12:05-09:15

1 stop27h 10m

£636

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Fri 8/5

09:50-09:10

2 stops17h 20m

Bangkok Suvarnabhumi

Thu 28/5

12:05-16:45

1 stop34h 40m

£653

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 7/5

17:15-09:10

2 stops33h 55m

Bangkok Suvarnabhumi

Tue 26/5

12:05-09:15

1 stop27h 10m

£660

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Thu 7/5

09:50-09:30

1 stop17h 40m

Bangkok Suvarnabhumi

Wed 27/5

11:20-09:15

2 stops27h 55m

£679

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Mon 13/4

11:55-17:05

2 stops22h 10m

Singapore Changi

Mon 27/4

19:45-22:50

3 stops34h 05m

£704

CardiffBangkok

CWL - BKK

CWLBKK

Cardiff Wales

Tue 5/5

17:15-09:10

2 stops33h 55m

Bangkok Suvarnabhumi

Tue 12/5

12:05-09:15

1 stop27h 10m

£709

CardiffSingapore

CWL - SIN

CWLSIN

Cardiff Wales

Thu 4/12

17:25-16:15

1 stop14h 50m

Singapore Changi

Sun 7/12

22:50-09:50

2 stops19h 00m

£728

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 38 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 £336). Flying from Cardiff to Southeast Asia in August is currently the most expensive (average of £634). 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 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
1,411 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

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
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

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
1,305 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

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 £628, KLM can have you in Southeast Asia from Cardiff in 33h 55m. 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 - Phuket City 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 £336). Flying from Cardiff to Southeast Asia in August is currently the most expensive (average of £634). 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 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£581Average£1,039FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£621Average£753FlexibilityNo 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?

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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