Which airlines fly to Southeast Asia?

British Airways, Qatar Airways and KLM are the top three most popular airlines that fly to Southeast Asia from Belfast Intl Airport according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 4 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

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

As of May 2026, there are 4 operators available to choose from 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.

£297 Cheap Flights from Belfast Intl Airport to Southeast Asia in 2026

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Find the cheapest flights from Belfast Intl Airport to Southeast Asia

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:10 - 12:35

BFS

BKK

24h 25m

2 stops

22:35 - 14:00

BKK

BFS

21h 25m

2 stops

£598Multiple Airlines

Thu, 11 Jun - Tue, 16 Jun

21:10 - 12:35

BFS

BKK

33h 25m

2 stops

22:35 - 14:00

BKK

BFS

21h 25m

2 stops

£603Multiple Airlines

Thu, 11 Jun - Tue, 16 Jun

06:10 - 12:35

BFS

BKK

24h 25m

2 stops

22:35 - 19:40

BKK

BFS

27h 05m

2 stops

£626Multiple Airlines

Thu, 18 Jun - Wed, 15 Jul

06:10 - 12:30

BFS

BKK

24h 20m

2 stops

05:30 - 11:35

BKK

BFS

36h 05m

3 stops

£661Multiple Airlines

Thu, 11 Jun - Tue, 16 Jun

06:00 - 09:30

BFS

SIN

44h 30m

2 stops

11:10 - 07:40

SIN

BFS

27h 30m

2 stops

£718Multiple Airlines

Sat, 13 Jun - Mon, 22 Jun

06:00 - 09:30

BFS

SIN

44h 30m

2 stops

23:05 - 23:10

SIN

BFS

31h 05m

2 stops

£725Multiple Airlines

Sat, 13 Jun - Mon, 22 Jun

06:20 - 20:10

BFS

SIN

30h 50m

2 stops

00:55 - 07:40

SIN

BFS

37h 45m

2 stops

£733Multiple Airlines

Sat, 13 Jun - Sun, 21 Jun

09:30 - 05:20

BFS

KUL

36h 50m

3 stops

22:00 - 11:45

KUL

BFS

20h 45m

2 stops

£748Multiple Airlines

Sat, 27 Jun - Sat, 4 Jul

08:15 - 23:55

BFS

DPS

32h 40m

2 stops

00:55 - 20:10

DPS

BFS

27h 15m

2 stops

£767Multiple Airlines

Mon, 19 Oct - Sun, 25 Oct

08:40 - 10:05

BFS

HKT

19h 25m

2 stops

19:10 - 15:35

HKT

BFS

26h 25m

3 stops

£787Multiple Airlines

Mon, 22 Jun - Mon, 29 Jun

momondo Fare Finder

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

Cheapest return flight

Fastest return journey

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 11/6

06:10-12:35

2 stops24h 25m

Bangkok Suvarnabhumi

Tue 16/6

22:35-14:00

2 stops21h 25m

£598

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 11/6

21:10-12:35

2 stops33h 25m

Bangkok Suvarnabhumi

Tue 16/6

22:35-14:00

2 stops21h 25m

£603

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 18/6

06:10-12:35

2 stops24h 25m

Bangkok Suvarnabhumi

Wed 15/7

22:35-19:40

2 stops27h 05m

£626

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 11/6

06:10-12:30

2 stops24h 20m

Bangkok Suvarnabhumi

Tue 16/6

05:30-11:35

3 stops36h 05m

£661

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Sat 13/6

06:00-09:30

2 stops44h 30m

Singapore Changi

Mon 22/6

11:10-07:40

2 stops27h 30m

£718

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Sat 13/6

06:00-09:30

2 stops44h 30m

Singapore Changi

Mon 22/6

23:05-23:10

2 stops31h 05m

£725

BelfastSingapore

BFS - SIN

BFSSIN

Belfast Intl

Sat 13/6

06:20-20:10

2 stops30h 50m

Singapore Changi

Sun 21/6

00:55-07:40

2 stops37h 45m

£733

BelfastKuala Lumpur

BFS - KUL

BFSKUL

Belfast Intl

Sat 27/6

09:30-05:20

3 stops36h 50m

Kuala Lumpur Intl

Sat 4/7

22:00-11:45

2 stops20h 45m

£748

BelfastDenpasar

BFS - DPS

BFSDPS

Belfast Intl

Mon 19/10

08:15-23:55

2 stops32h 40m

Denpasar Bali Ngurah Rai

Sun 25/10

00:55-20:10

2 stops27h 15m

£767

BelfastPhuket City

BFS - HKT

BFSHKT

Belfast Intl

Mon 22/6

08:40-10:05

2 stops19h 25m

Phuket City

Mon 29/6

19:10-15:35

3 stops26h 25m

£787

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Southeast Asia?

The month of January is, on average, the cheapest month to fly to Southeast Asia from Belfast Intl Airport, with most prices found around £453. If you are unable to visit Southeast Asia during the month of January, then departing from Belfast Intl Airport during the month November is also very affordable. Most momondo users find prices during this month for around £656.

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	17h 50m
Direct flights	None

The fastest flight from Belfast Intl Airport to Southeast Asia takes 17h 50m

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

Frequently asked questions about flying from Belfast Intl Airport to Southeast Asia

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?
As of May 2026, there are 4 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Belfast Intl Airport to Southeast Asia is Airbus A320-100/200 (31.54% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (27.76%), Airbus A319 (22.41%), and ATR 72-201 / 202 (11.40%).

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
China Southern	PriceFrom £453	Free Cancellation	Rating 7.5 151 reviews	Search China Southern flights
British Airways	PriceFrom £551	Free Cancellation	Rating 6.7 7,981 reviews	Search British Airways flights
KLM	PriceFrom £579	Free Cancellation	Rating 7.8 1,517 reviews	Search KLM flights
Qatar Airways	PriceFrom £871	Free Cancellation	Rating 7.4 3,725 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.