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Cheap flights from Belfast Intl Airport to Southeast Asia from £352
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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
18 Oct — 25 Oct1
Cheap flight deals from Belfast Intl to Southeast Asia
Keep the following information in mind while searching for Belfast Intl to Southeast Asia flight deals. Data was last updated 18 September 2025.
Find flight deals from Belfast Intl to Southeast Asia
Cheapest flights from Belfast Intl to Southeast AsiaExplore the most affordable flight options available from Belfast Intl to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Explore the most affordable flight options available from Belfast Intl to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Fri 31/1021:20BFS - BKK
3 stops40h 45mMultiple Airlines
Fri 7/1112:20BKK - BFS
3 stops33h 50mMultiple Airlines
Deal found 16/9£498
Fri 31/1021:20BFS - SIN
3 stops36h 00mMultiple Airlines
Thu 6/1102:45SIN - BFS
2 stops26h 20mMultiple Airlines
Deal found 16/9£525
Sat 1/1122:25BFS - BKK
3 stops27h 45mMultiple Airlines
Sat 8/1122:05BKK - BFS
3 stops31h 15mMultiple Airlines
Deal found 17/9£574
Fri 3/1006:05BFS - BKK
3 stops34h 35mMultiple Airlines
Fri 24/1005:05BKK - BFS
2 stops23h 20mMultiple Airlines
Deal found 16/9£584
Fri 31/1021:05BFS - KUL
3 stops38h 30mMultiple Airlines
Fri 7/1121:40KUL - BFS
3 stops32h 20mMultiple Airlines
Deal found 15/9£592
Mon 6/1020:55BFS - SIN
3 stops37h 50mMultiple Airlines
Thu 13/1116:15SIN - BFS
3 stops36h 50mMultiple Airlines
Deal found 16/9£596
Wed 1/1006:10BFS - SIN
3 stops28h 35mMultiple Airlines
Mon 6/1019:45SIN - BFS
3 stops33h 45mMultiple Airlines
Deal found 17/9£625
Mon 22/908:10BFS - BKK
2 stops21h 10mMultiple Airlines
Tue 30/917:10BKK - BFS
3 stops35h 35mMultiple Airlines
Deal found 17/9£632
Fri 31/1007:05BFS - DPS
3 stops29h 15mMultiple Airlines
Fri 7/1119:05DPS - BFS
3 stops34h 55mMultiple Airlines
Deal found 16/9£671
Tue 30/907:30BFS - KUL
2 stops25h 25mMultiple Airlines
Thu 16/1009:50KUL - BFS
2 stops35h 15mMultiple Airlines
Deal found 16/9£707
Mon 6/1015:30BFS - KCH
3 stops25h 35mMultiple Airlines
Thu 13/1109:50KCH - BFS
3 stops44h 30mMultiple Airlines
Deal found 16/9£737
Fri 3/1006:05BFS - DPS
2 stops34h 25mMultiple Airlines
Fri 10/1016:55DPS - BFS
3 stops25h 00mMultiple Airlines
Deal found 17/9£785
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast Intl 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 Belfast Intl Airport to Southeast Asia that are best for you.
Fly from
Belfast Intl
Fly to
Southeast Asia
Route
Depart
Return
Price
BelfastBangkok
BFS - BKK
BFSBKK
Belfast Intl
Fri 31/10
21:20-21:05
3 stops40h 45m
Bangkok Suvarnabhumi
Fri 7/11
12:20-15:10
3 stops33h 50m
£498
BelfastSingapore
BFS - SIN
BFSSIN
Belfast Intl
Fri 31/10
21:20-17:20
3 stops36h 00m
Singapore Changi
Thu 6/11
02:45-21:05
2 stops26h 20m
£525
BelfastBangkok
BFS - BKK
BFSBKK
Belfast Intl
Sat 1/11
22:25-09:10
3 stops27h 45m
Bangkok Suvarnabhumi
Sat 8/11
22:05-22:20
3 stops31h 15m
£574
BelfastBangkok
BFS - BKK
BFSBKK
Belfast Intl
Fri 30/1
06:30-10:25
1 stop20h 55m
Bangkok Suvarnabhumi
Mon 16/3
12:30-10:05
1 stop28h 35m
£577
BelfastBangkok
BFS - BKK
BFSBKK
Belfast Intl
Fri 3/10
06:05-22:40
3 stops34h 35m
Bangkok Suvarnabhumi
Fri 24/10
05:05-22:25
2 stops23h 20m
£584
BelfastSingapore
BFS - SIN
BFSSIN
Belfast Intl
Mon 6/10
20:55-17:45
3 stops37h 50m
Singapore Changi
Thu 13/11
16:15-21:05
3 stops36h 50m
£596
BelfastKuala Lumpur
BFS - KUL
BFSKUL
Belfast Intl
Fri 31/10
07:05-23:25
2 stops32h 20m
Kuala Lumpur Intl
Fri 7/11
21:40-22:00
3 stops32h 20m
£605
BelfastSingapore
BFS - SIN
BFSSIN
Belfast Intl
Wed 1/10
06:10-17:45
3 stops28h 35m
Singapore Changi
Mon 6/10
19:45-22:30
3 stops33h 45m
£625
BelfastDenpasar
BFS - DPS
BFSDPS
Belfast Intl
Fri 31/10
07:05-20:20
3 stops29h 15m
Denpasar Bali Ngurah Rai
Fri 7/11
19:05-22:00
3 stops34h 55m
£671
BelfastBangkok
BFS - BKK
BFSBKK
Belfast Intl
Tue 30/9
20:35-17:25
3 stops38h 50m
Bangkok Suvarnabhumi
Thu 16/10
12:20-22:25
3 stops40h 05m
£673
Showing 1-10 of 18 results
Best time to book a flight from Belfast Intl to Southeast Asia
Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Belfast Intl 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 Intl Airport to Southeast Asia
What is the cheapest month to book a flight from Belfast Intl Airport to Southeast Asia?
Currently, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Southeast Asia (average of £717). Flying from Belfast Intl Airport 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.
What is the cheapest time of day to fly from BFS to YJX?
Find hourly flight availability from Belfast Intl 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 18 September 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast Intl Airport to Southeast Asia as you normally would.
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.
See what other customers who have flown with KLM, Qatar Airways, andBritish Airways from Belfast Intl Airport to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayMark,Sept 2025
AMS - BHX
Related info for your journey
Find useful and relevant information for your journey from Belfast Intl to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Belfast Intl to Southeast Asia
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Belfast Intl to Southeast Asia
Discover the top 3 airlines that operate flights from Belfast Intl 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.
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 Intl to Southeast Asia?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast Intl to Southeast Asia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Southeast Asia?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to Southeast Asia.
Can Cheapflights find flights from Belfast Intl to Southeast Asia with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to Southeast Asia, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Belfast Intl to Southeast Asia become cheaper?
Yes, Cheapflights offers price alerts on Belfast Intl 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.