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Cheap flights from Northern Ireland to Southeast Asia from £272

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Southeast Asia
Explore the most affordable flight options available from Northern Ireland to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Wed 6/506:10
BFS
-
BKK
2 stops24h 25m
Multiple Airlines
Wed 27/522:35
BKK
-
BFS
2 stops28h 05m
Multiple Airlines
Deal found 19/3£524
Wed 22/420:15
BFS
-
BKK
3 stops45h 35m
Multiple Airlines
Wed 6/522:45
BKK
-
BFS
2 stops22h 35m
Multiple Airlines
Deal found 19/3£534
Tue 5/506:15
BFS
-
SIN
2 stops26h 30m
Multiple Airlines
Tue 12/523:10
SIN
-
BFS
2 stops28h 45m
Multiple Airlines
Deal found 21/3£537
Mon 2/1106:30
BFS
-
BKK
2 stops22h 50m
Multiple Airlines
Thu 19/1101:55
BKK
-
BFS
2 stops25h 45m
Multiple Airlines
Deal found 22/3£541
Thu 11/606:10
BFS
-
BKK
2 stops24h 25m
Multiple Airlines
Wed 8/722:35
BKK
-
BFS
2 stops28h 05m
Multiple Airlines
Deal found 21/3£583
Sun 7/606:30
BHD
-
BKK
2 stops46h 40m
Multiple Airlines
Tue 23/603:15
BKK
-
BHD
2 stops38h 45m
Multiple Airlines
Deal found 19/3£586
Wed 6/507:30
BFS
-
BKK
3 stops46h 40m
Multiple Airlines
Wed 13/522:45
BKK
-
BFS
2 stops22h 35m
Multiple Airlines
Deal found 22/3£594
Thu 1/1016:35
BHD
-
BKK
2 stops35h 45m
Multiple Airlines
Mon 26/1018:55
BKK
-
BHD
2 stops44h 30m
Multiple Airlines
Deal found 20/3£596
Thu 11/607:00
BHD
-
BKK
2 stops23h 35m
Multiple Airlines
Wed 8/722:35
BKK
-
BHD
2 stops22h 30m
Multiple Airlines
Deal found 21/3£611
Sat 3/1007:00
BHD
-
BKK
2 stops24h 05m
Multiple Airlines
Mon 26/1012:45
BKK
-
BHD
1 stop27h 50m
Multiple Airlines
Deal found 22/3£615
Mon 4/516:10
BFS
-
SIN
3 stops34h 30m
Multiple Airlines
Thu 21/521:00
SIN
-
BFS
2 stops25h 05m
Multiple Airlines
Deal found 20/3£619
Mon 4/507:05
BFS
-
SIN
2 stops43h 35m
Multiple Airlines
Mon 11/521:00
SIN
-
BFS
2 stops30h 55m
Multiple Airlines
Deal found 20/3£625

Find flight deals from Northern Ireland to Southeast Asia

Keep the following information in mind while searching for Northern Ireland to Southeast Asia flight deals. Data was last updated 23 March 2026.

Round-trip from

£524

One-way from

£272

Popular in

December

Cheapest in

August

Average price

£753
6/5-27/5
  • 6/5-27/5
  • 4 total stops
  • 52h 30m total
  • Northern Ireland to Southeast Asia
Search Deals
14/4
  • 14/4
  • 3 total stops
  • 48h 15m total
  • Northern Ireland to Southeast Asia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£50 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 March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 23 March 2026.
Use the filters below to find and compare flights from Northern Ireland to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 6/5

06:10-12:35

2 stops24h 25m

Bangkok Suvarnabhumi

Wed 27/5

22:35-20:40

2 stops28h 05m

£524

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Tue 5/5

06:15-15:45

2 stops26h 30m

Singapore Changi

Tue 12/5

23:10-20:55

2 stops28h 45m

£537

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 6/5

07:30-12:10

3 stops46h 40m

Bangkok Suvarnabhumi

Wed 13/5

22:45-15:20

2 stops22h 35m

£594

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 22/4

15:40-18:10

2 stops20h 30m

Bangkok Suvarnabhumi

Wed 6/5

09:40-21:20

2 stops17h 40m

£627

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Mon 4/5

21:05-09:40

3 stops29h 35m

Singapore Changi

Mon 11/5

20:00-23:20

3 stops34h 20m

£656

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Mon 4/5

16:10-09:40

3 stops34h 30m

Singapore Changi

Wed 20/5

03:15-07:50

3 stops35h 35m

£657

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 12/6

09:55-18:10

2 stops26h 15m

Bangkok Suvarnabhumi

Sun 5/7

09:15-23:25

2 stops20h 10m

£662

BelfastKuala Lumpur

BHD - KUL

BHDKUL

Belfast City

Tue 5/5

17:20-21:25

2 stops21h 05m

Kuala Lumpur Intl

Mon 11/5

02:05-16:50

2 stops21h 45m

£667

BelfastManila

BFS - MNL

BFSMNL

Belfast Intl

Wed 29/4

10:55-16:35

2 stops22h 40m

Manila Ninoy Aquino Intl

Tue 26/5

09:45-21:20

2 stops42h 35m

£693

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 4/5

08:40-19:15

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 11/5

20:15-23:20

3 stops33h 05m

£698

Flights are sorted by cheapest return flights first.

Deals found on 18/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Northern Ireland to Southeast Asia

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

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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Southeast Asia (average of £454). Flying from Northern Ireland to Southeast Asia in July is currently the most expensive (average of £732). 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.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland 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 Northern Ireland to Southeast Asia?

    Airlines like KLM, British Airways, and Qatar Airways fly from Northern Ireland to Southeast Asia in about 17h 40m. The time it takes to get you to your destination can typically vary by up to 33h 55m. The distance between Northern Ireland and Southeast Asia is about 6087 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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 Northern Ireland to Southeast Asia?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Southeast Asia (average of £454). Flying from Northern Ireland to Southeast Asia in July is currently the most expensive (average of £732). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Gatwick to Suvarnabhumi flights
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Stansted to Haneda flights
Luton to Suvarnabhumi flights
London City to Haneda flights
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Gatwick to Kuala Lumpur Intl flights
Heathrow to Manila flights
Heathrow to Mumbai flights
Heathrow to Denpasar flights
Heathrow to Islamabad flights
Heathrow to Singapore flights
Heathrow to Hongqiao Intl flights
Gatwick to Manila flights
Manchester to Islamabad flights
Stansted to Manila flights
Stansted to Kuala Lumpur Intl flights
Gatwick to New Delhi flights
Gatwick to Don Mueang Intl flights
Stansted to New Delhi flights
Stansted to Denpasar flights
London City to Kuala Lumpur Intl flights
Gatwick to Denpasar flights
London City to Manila flights
Heathrow to Hanoi flights
London City to Denpasar flights
Gatwick to Singapore flights
Heathrow to Lahore flights
Heathrow to Bangalore flights
Heathrow to Gimpo Intl flights
Heathrow to Pu Dong flights
Luton to Narita flights
Stansted to Hong Kong flights
Gatwick to Colombo flights
Gatwick to Hong Kong flights
Stansted to Colombo flights

Top 4 airlines flying from Northern Ireland to Southeast Asia

Discover the top 4 airlines that operate flights from Northern Ireland 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 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£454Average£488FlexibilityNo cancel feeOn-time69%
Search China Southern flights
British AirwaysCheapest£554Average£819FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£566Average£871FlexibilityNo cancel feeOn-time75%
Search KLM flights
Qatar AirwaysCheapest£862Average£1,182FlexibilityNo 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 Northern Ireland to Southeast Asia?

When you search for this flight from Northern Ireland to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Southeast Asia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from Northern Ireland.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Southeast Asia flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southeast Asia from Northern Ireland today and book when prices fit your budget.

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