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Cheap flights from Belfast to Southeast Asia from £265

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — BKK
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Southeast Asia

Keep the following information in mind while searching for Belfast to Southeast Asia flight deals. Data was last updated 27 November 2025.

Round-trip from

£520

One-way from

£265

Popular in

December

Cheapest in

May

Average price

£725
5/2-26/2
  • 5/2-26/2
  • 4 total stops
  • 74h 00m total
  • Belfast to Southeast Asia
Search Deals
20/1
  • 20/1
  • 3 total stops
  • 42h 15m total
  • Belfast to Southeast Asia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Belfast to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Southeast Asia
Explore the most affordable flight options available from Belfast to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Sun 30/1123:05BFS - SIN
2 stops31h 50mMultiple Airlines
Tue 9/1216:10SIN - BFS
2 stops26h 10mMultiple Airlines
Deal found 25/11£565
Sun 7/1206:30BHD - KUL
2 stops24h 10mBritish Airways
Thu 11/1210:15KUL - BHD
2 stops29h 15mBritish Airways
Deal found 24/11£780
Sun 7/1206:30BHD - KUL
2 stops28h 15mKLM
Thu 11/1223:50KUL - BHD
1 stop25h 00mKLM
Deal found 24/11£816
Sun 14/1205:45BFS - DPS
3 stops33h 40mMultiple Airlines
Wed 14/120:05DPS - BFS
3 stops33h 40mMultiple Airlines
Deal found 25/11£816
Sun 30/1106:30BHD - BKK
1 stop20h 35mKLM
Thu 4/1209:30BKK - BHD
2 stops18h 30mKLM
Deal found 25/11£909
Sun 30/1110:40BHD - BKK
2 stops19h 25mBritish Airways
Wed 3/1202:00BKK - BHD
2 stops21h 35mBritish Airways
Deal found 25/11£939
Sun 14/1212:10BHD - DPS
2 stops26h 40mBritish Airways
Wed 14/119:15DPS - BHD
2 stops21h 55mBritish Airways
Deal found 25/11£985
Mon 1/1217:45BHD - BKK
2 stops18h 40mBritish Airways
Thu 4/1220:30BKK - BHD
2 stops28h 30mBritish Airways
Deal found 24/11£1,001
Mon 1/1206:30BHD - BKK
1 stop20h 35mKLM
Thu 4/1209:30BKK - BHD
2 stops18h 30mKLM
Deal found 25/11£1,017
Sat 20/1206:30BHD - MNL
3 stops33h 35mMultiple Airlines
Sun 4/106:05MNL - BHD
3 stops35h 40mMultiple Airlines
Deal found 25/11£1,468
Sat 20/1209:45BHD - MNL
2 stops41h 35mMultiple Airlines
Sun 25/117:45MNL - BHD
2 stops28h 05mMultiple Airlines
Deal found 26/11£1,609
Sun 14/1217:35BHD - DPS
2 stops21h 15mMultiple Airlines
Wed 14/111:35DPS - BHD
3 stops30h 10mMultiple Airlines
Deal found 25/11£1,852

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 27 November 2025.
Use the filters below to find and compare flights from Belfast to Southeast Asia that are best for you.

Fly from

Belfast

Fly to

Southeast Asia

Route

Depart

Return

Price

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 16/2

15:00-21:05

3 stops47h 05m

Bangkok Suvarnabhumi

Tue 17/3

18:25-13:25

3 stops26h 00m

£553

BelfastKuala Lumpur

BFS - KUL

BFSKUL

Belfast Intl

Sat 17/1

06:00-08:45

3 stops42h 45m

Kuala Lumpur Intl

Thu 29/1

09:35-07:25

3 stops29h 50m

£556

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 9/4

06:10-10:10

2 stops22h 00m

Bangkok Suvarnabhumi

Fri 1/5

15:05-23:20

3 stops38h 15m

£567

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Fri 9/1

07:05-14:55

2 stops23h 50m

Singapore Changi

Fri 16/1

16:10-15:10

2 stops31h 00m

£570

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Sat 10/1

22:25-17:20

3 stops34h 55m

Singapore Changi

Sat 17/1

19:25-10:55

2 stops23h 30m

£592

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 10/4

10:55-04:25

3 stops35h 30m

Bangkok Suvarnabhumi

Fri 1/5

17:10-21:00

2 stops33h 50m

£609

BelfastBangkok

BHD - BKK

BHDBKK

Belfast City

Thu 9/4

07:00-12:30

2 stops23h 30m

Bangkok Suvarnabhumi

Fri 1/5

10:50-14:15

2 stops33h 25m

£628

BelfastKuala Lumpur

BHD - KUL

BHDKUL

Belfast City

Sun 18/1

17:35-00:15

2 stops22h 40m

Kuala Lumpur Intl

Thu 22/1

08:05-18:50

2 stops42h 45m

£637

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 17/2

16:30-01:20

2 stops25h 50m

Bangkok Suvarnabhumi

Sat 14/3

12:25-08:55

1 stop27h 30m

£645

BelfastKuala Lumpur

BFS - KUL

BFSKUL

Belfast Intl

Fri 9/1

06:30-22:15

3 stops31h 45m

Kuala Lumpur Intl

Fri 16/1

09:35-22:45

3 stops45h 10m

£646

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 50 results
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Best time to book a flight from Belfast to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Belfast 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 Belfast to Southeast Asia

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

Currently, May is the cheapest month in which you can book a flight from Belfast to Southeast Asia (average of £558). Flying from Belfast to Southeast Asia in July is currently the most expensive (average of £736). 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.

What is the cheapest time of day to fly from BFS to YJX?

Find hourly flight availability from Belfast to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

When flying from Belfast to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 8% versus a flight in the morning.

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 27 November 2025.
Read through reviews of airlines operating flights from Belfast to Southeast Asia, such as KLM, Qatar Airways, andMalaysia Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,423 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Boarding

7.8

Food

7.2

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
1,423 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Boarding

7.8

Food

7.2

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.
Qatar Airways
7.4
Good
3,677 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Boarding

7.8

Food

7.2

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.
Malaysia Airlines
7.3
Good
281 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Boarding

7.8

Food

7.2

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.
British Airways
6.7
Okay
7,539 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Boarding

7.8

Food

7.2

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 Belfast to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Belfast to Southeast Asia in 22h 40m. Fly via China Southern or British Airways to get the fastest option. The distance from Belfast to Southeast Asia is about 6752 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Belfast to Southeast Asia is Belfast Intl - Bangkok Suvarnabhumi. You may also consider Belfast City - Bangkok Suvarnabhumi or Belfast Intl - Manila Ninoy Aquino Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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 Belfast to Southeast Asia?

    Currently, May is the cheapest month in which you can book a flight from Belfast to Southeast Asia (average of £558). Flying from Belfast to Southeast Asia in July is currently the most expensive (average of £736). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Belfast Intl to Chiang Mai flights
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Belfast Intl to Karachi flights

Top 4 airlines flying from Belfast to Southeast Asia

Discover the top 4 airlines that operate flights from Belfast 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£559Average£828FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£572Average£852FlexibilityNo cancel feeOn-time75%
Search KLM flights
Malaysia AirlinesCheapest£700Average£796FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Qatar AirwaysCheapest£773Average£1,150FlexibilityNo cancel feeOn-time68%
Search Qatar 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 Belfast to Southeast Asia?

Cheapflights helps you search for flights from Belfast 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 Belfast to Southeast Asia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Southeast Asia for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Southeast Asia from Belfast? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Belfast to Southeast Asia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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