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Cheap flights from Belfast Intl Airport to Southeast Asia from £284

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to Southeast Asia departing on 17/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Belfast Intl Airport to Southeast Asia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:00 - 18:05
BFS
-
BKK
29h 05m
2 stops
Multiple Airlines Logo
01:30 - 07:40
BKK
-
BFS
37h 10m
2 stops
£443Multiple Airlines
Thu, 12 Mar - Thu, 26 Mar
Multiple Airlines Logo
06:30 - 15:55
BFS
-
BKK
26h 25m
2 stops
Multiple Airlines Logo
00:55 - 17:55
BKK
-
BFS
24h 00m
2 stops
£513Multiple Airlines
Thu, 5 Mar - Wed, 11 Mar
Multiple Airlines Logo
06:05 - 01:20
BFS
-
BKK
37h 15m
2 stops
Multiple Airlines Logo
19:35 - 22:40
BKK
-
BFS
33h 05m
2 stops
£518Multiple Airlines
Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
06:35 - 01:30
BFS
-
BKK
36h 55m
2 stops
Multiple Airlines Logo
08:20 - 07:55
BKK
-
BFS
29h 35m
2 stops
£549Multiple Airlines
Thu, 9 Apr - Thu, 30 Apr
Multiple Airlines Logo
06:30 - 15:55
BFS
-
BKK
26h 25m
2 stops
Multiple Airlines Logo
02:10 - 20:35
BKK
-
BFS
24h 25m
2 stops
£593Multiple Airlines
Wed, 18 Mar - Thu, 2 Apr
Multiple Airlines Logo
14:45 - 23:25
BFS
-
BKK
25h 40m
2 stops
Multiple Airlines Logo
20:15 - 00:15
BKK
-
BFS
34h 00m
3 stops
£612Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar
Multiple Airlines Logo
18:25 - 22:00
BFS
-
BKK
44h 35m
3 stops
Multiple Airlines Logo
13:50 - 11:55
BKK
-
BFS
28h 05m
2 stops
£619Multiple Airlines
Wed, 18 Mar - Fri, 3 Apr
Multiple Airlines Logo
05:45 - 21:45
BFS
-
HKT
33h 00m
3 stops
Multiple Airlines Logo
20:30 - 00:15
HKT
-
BFS
33h 45m
3 stops
£644Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar
Multiple Airlines Logo
19:45 - 10:25
BFS
-
BKK
31h 40m
1 stop
Multiple Airlines Logo
12:25 - 07:25
BKK
-
BFS
26h 00m
1 stop
£658Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
05:45 - 21:45
BFS
-
HKT
33h 00m
3 stops
Multiple Airlines Logo
20:30 - 13:50
HKT
-
BFS
23h 20m
2 stops
£660Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 8 February 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 12/3

06:00-18:05

2 stops29h 05m

Bangkok Suvarnabhumi

Thu 26/3

01:30-07:40

2 stops37h 10m

£443

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 5/3

06:30-15:55

2 stops26h 25m

Bangkok Suvarnabhumi

Wed 11/3

00:55-17:55

2 stops24h 00m

£513

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 1/5

06:05-01:20

2 stops37h 15m

Bangkok Suvarnabhumi

Sat 9/5

19:35-22:40

2 stops33h 05m

£518

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 9/4

06:35-01:30

2 stops36h 55m

Bangkok Suvarnabhumi

Thu 30/4

08:20-07:55

2 stops29h 35m

£549

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 18/3

06:30-15:55

2 stops26h 25m

Bangkok Suvarnabhumi

Thu 2/4

02:10-20:35

2 stops24h 25m

£593

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 22/3

14:45-23:25

2 stops25h 40m

Bangkok Suvarnabhumi

Sun 29/3

20:15-00:15

3 stops34h 00m

£612

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 18/3

18:25-22:00

3 stops44h 35m

Bangkok Suvarnabhumi

Fri 3/4

13:50-11:55

2 stops28h 05m

£619

BelfastPhuket City

BFS - HKT

BFSHKT

Belfast Intl

Sun 22/3

05:45-21:45

3 stops33h 00m

Phuket City

Sun 29/3

20:30-00:15

3 stops33h 45m

£644

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 5/3

19:45-10:25

1 stop31h 40m

Bangkok Suvarnabhumi

Thu 12/3

12:25-07:25

1 stop26h 00m

£658

BelfastPhuket City

BFS - HKT

BFSHKT

Belfast Intl

Sun 22/3

05:45-21:45

3 stops33h 00m

Phuket City

Sun 29/3

20:30-13:50

2 stops23h 20m

£660

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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See travel insights to Southeast Asia from

How to get the cheapest flight ticket from Belfast Intl Airport to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Southeast Asia?

The month of May is, on average, the cheapest month to fly to Southeast Asia from Belfast Intl Airport, with most prices found around £585. If you are unable to visit Southeast Asia during the month of May, then departing from Belfast Intl Airport during the month August is also very affordable. Most momondo users find prices during this month for around £631.

Can stopping save me money on Belfast Intl Airport to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Belfast Intl Airport to Southeast Asia.

Cheap Belfast Intl Airport to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Southeast Asia

Fastest flight time

19h 05m

Direct flights

None
The fastest flight from Belfast Intl Airport to Southeast Asia takes 19h 05m
There are no direct flights from Belfast Intl Airport to Southeast Asia. There are no popular flight routes from Belfast Intl Airport to Southeast Asia.
Search flight deals

  • When did momondo last update prices for flights from Belfast Intl Airport to Southeast Asia?

    Prices for flights from Belfast Intl Airport to Southeast Asia refresh daily.

  • How many operators does momondo search for flights from Belfast Intl Airport to Southeast Asia?

  • How old do you have to be to fly from Belfast Intl Airport to Southeast Asia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Southeast Asia.

  • What documentation or ID do you need to fly to Southeast Asia?

    The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Belfast Intl Airport to Southeast Asia?

Best airlines flying from Belfast Intl Airport to Southeast Asia

Compare and see reviews for airlines that fly from Belfast Intl Airport to Southeast Asia with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £542Free CancellationRating
6.7
7,720 reviews
Search British Airways flights
KLMPriceFrom £554Free CancellationRating
7.7
1,450 reviews
Search KLM flights
Qatar AirwaysPriceFrom £852Free CancellationRating
7.4
3,728 reviews
Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Southeast Asia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to Southeast Asia for you.

Can I find flights from Belfast to Southeast Asia with flexible booking policies on momondo?

Yes. All flights to Southeast Asia from Belfast on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Belfast to Southeast Asia?

Once all potential Belfast to Southeast Asia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Belfast to Southeast Asia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Southeast Asia from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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