In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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

When deciding which route to take from Belfast Intl Airport to Southeast Asia consider Belfast Intl - Bangkok Suvarnabhumi, Belfast Intl - Manila Ninoy Aquino Intl or Belfast Intl - Kuala Lumpur Intl as they are the most popular.

What are the most popular airlines that fly from Belfast Intl Airport to Southeast Asia?

The most popular airlines flying from Belfast Intl Airport to Southeast Asia are Qatar Airways, British Airways and KLM. Something to consider prior to booking your flight.

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

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.

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

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

How can I find direct flights from Belfast Intl 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 Intl to Southeast Asia.

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

Yes. Cheapflights offers flight deals from Belfast Intl 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.

£248+ Cheap Flights from Belfast Intl Airport to Southeast Asia

Cheap flight deals from Belfast Intl to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Belfast Intl to Southeast Asia
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 19 August 2026.

Thu 3/906:10 -

2 stops36h 00m

Sun 13/901:30 -

2 stops36h 10m

Deal found 17/8£460

Wed 9/908:55 -

2 stops33h 15m

Sun 27/901:30 -

2 stops35h 55m

Deal found 17/8£474

Fri 6/1121:10 -

2 stops34h 20m

Fri 20/1118:55 -

2 stops29h 20m

Deal found 16/8£505

Wed 30/908:10 -

3 stops41h 45m

Wed 7/1021:20 -

2 stops31h 00m

Deal found 15/8£519

Tue 8/920:15 -

3 stops40h 05m

Tue 22/915:55 -

2 stops29h 20m

Deal found 16/8£527

Mon 7/906:10 -

2 stops33h 55m

Thu 17/900:05 -

2 stops40h 50m

Deal found 14/8£530

Tue 29/920:10 -

3 stops39h 35m

Mon 5/1003:15 -

2 stops33h 50m

Deal found 15/8£531

Mon 28/909:10 -

2 stops33h 00m

Sun 4/1003:15 -

3 stops39h 00m

Deal found 14/8£539

Thu 3/906:10 -

2 stops36h 00m

Wed 16/921:00 -

2 stops31h 20m

Deal found 18/8£543

Tue 8/920:10 -

3 stops43h 50m

Tue 22/909:25 -

2 stops35h 50m

Deal found 16/8£545

Mon 14/908:15 -

2 stops33h 55m

Mon 21/915:55 -

2 stops29h 40m

Deal found 17/8£547

Mon 2/1106:40 -

3 stops27h 25m

Tue 10/1111:50 -

3 stops40h 05m

Deal found 17/8£548

Best flights from Belfast Intl to Southeast Asia
Discover carefully curated flight deals from Belfast Intl to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Thu 10/906:10 -

2 stops25h 25m

Sun 13/901:30 -

2 stops38h 25m

Deal found 18/8£474

Tue 8/920:15 -

3 stops40h 05m

Tue 22/915:55 -

2 stops29h 20m

Deal found 16/8£527

Mon 7/906:10 -

2 stops33h 55m

Thu 17/900:05 -

2 stops40h 50m

Deal found 14/8£530

Wed 30/908:10 -

3 stops27h 30m

Wed 7/1009:25 -

3 stops39h 50m

Deal found 15/8£534

Mon 28/909:10 -

2 stops33h 00m

Sun 4/1003:15 -

3 stops39h 00m

Deal found 14/8£539

Tue 8/920:10 -

3 stops43h 50m

Tue 22/909:25 -

2 stops35h 50m

Deal found 16/8£545

Tue 29/920:15 -

3 stops34h 00m

Tue 6/1020:00 -

2 stops26h 15m

Deal found 15/8£550

Fri 6/1107:00 -

3 stops27h 05m

Fri 20/1116:20 -

3 stops37h 15m

Deal found 16/8£554

Thu 1/1017:30 -

3 stops36h 45m

Thu 8/1020:00 -

2 stops30h 30m

Deal found 17/8£555

Wed 30/920:10 -

3 stops35h 40m

Wed 7/1020:00 -

3 stops33h 20m

Deal found 16/8£579

Tue 29/920:55 -

2 stops31h 25m

Tue 6/1008:55 -

2 stops28h 35m

Deal found 15/8£582

Wed 30/906:15 -

2 stops30h 30m

Wed 7/1009:45 -

3 stops44h 30m

Deal found 16/8£584

Mon 2/1107:15 -

3 stops44h 10m

Tue 10/1105:40 -

2 stops22h 35m

Deal found 17/8£592

Thu 1/1006:10 -

2 stops29h 30m

Thu 8/1018:40 -

2 stops31h 55m

Deal found 17/8£612

Fri 4/920:25 -

3 stops44h 55m

Wed 30/905:50 -

2 stops32h 50m

Deal found 17/8£612

Fri 2/1021:10 -

2 stops29h 00m

Fri 9/1009:45 -

2 stops35h 30m

Deal found 18/8£639

Wed 28/1006:25 -

1 stop22h 55m

Wed 18/1109:20 -

1 stop31h 45m

Deal found 17/8£687

Sun 4/1006:25 -

3 stops35h 10m

Sat 17/1011:20 -

3 stops43h 05m

Deal found 18/8£697

Sun 24/115:25 -

3 stops38h 40m

Sat 20/203:00 -

3 stops24h 15m

Deal found 15/8£724

Mon 28/915:50 -

3 stops35h 25m

Mon 5/1018:25 -

3 stops34h 55m

Deal found 14/8£742

Mon 7/919:35 -

3 stops38h 45m

Sun 20/916:10 -

3 stops36h 20m

Deal found 17/8£745

Wed 16/1206:25 -

3 stops35h 35m

Thu 28/109:30 -

2 stops32h 05m

Deal found 18/8£771

Sat 3/1006:20 -

2 stops28h 00m

Thu 15/1000:55 -

2 stops40h 00m

Deal found 17/8£792

Tue 1/914:45 -

2 stops26h 35m

Tue 29/906:25 -

2 stops35h 15m

Deal found 18/8£800

Thu 8/1006:35 -

2 stops33h 05m

Fri 16/1014:55 -

3 stops28h 00m

Deal found 15/8£836

Wed 30/908:15 -

3 stops32h 15m

Wed 7/1016:10 -

3 stops37h 10m

Deal found 16/8£855

Fri 2/1007:35 -

2 stops20h 35m

Thu 8/1002:10 -

1 stop24h 20m

Deal found 18/8£866

Thu 17/1209:55 -

3 stops41h 20m

Sun 27/1222:20 -

2 stops30h 20m

Deal found 18/8£882

Thu 1/1020:55 -

3 stops38h 15m

Thu 8/1012:10 -

2 stops28h 45m

Deal found 17/8£892

Tue 22/1206:45 -

3 stops44h 30m

Wed 6/118:20 -

2 stops30h 40m

Deal found 18/8£1,124

Find flight deals from Belfast Intl to Southeast Asia

Round-trip from	£460
One-way from	£248
Popular in	December
Cheapest in	September
Average price	£677

3/9-13/9
4 total stops
72h 10m total
Belfast to Southeast Asia

Search Deals

20/9
3 total stops
34h 55m total
Belfast to Southeast Asia

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (£210 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 9% potential price decrease (£54 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights 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

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Thu 10/9

06:10-13:35

2 stops25h 25m

Bangkok Suvarnabhumi

Sun 13/9

01:30-09:55

2 stops38h 25m

£474

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Tue 8/9

20:15-18:20

3 stops40h 05m

Bangkok Suvarnabhumi

Tue 22/9

15:55-15:15

2 stops29h 20m

£527

BelfastKuala Lumpur

BFS Belfast Intl - KUL Kuala Lumpur Intl

BFSKUL

Belfast Intl

Mon 7/9

06:10-23:05

2 stops33h 55m

Kuala Lumpur Intl

Thu 17/9

00:05-09:55

2 stops40h 50m

£530

BelfastPhuket City

BFS Belfast Intl - HKT Phuket City

BFSHKT

Belfast Intl

Wed 30/9

08:10-17:40

3 stops27h 30m

Phuket City

Wed 7/10

09:25-19:15

3 stops39h 50m

£534

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Mon 28/9

09:10-00:10

2 stops33h 00m

Bangkok Suvarnabhumi

Sun 4/10

03:15-12:15

3 stops39h 00m

£539

BelfastPhuket City

BFS Belfast Intl - HKT Phuket City

BFSHKT

Belfast Intl

Tue 8/9

20:10-22:00

3 stops43h 50m

Phuket City

Tue 22/9

09:25-15:15

2 stops35h 50m

£545

BelfastSingapore

BFS Belfast Intl - SIN Singapore Changi

BFSSIN

Belfast Intl

Tue 29/9

20:15-13:15

3 stops34h 00m

Singapore Changi

Tue 6/10

20:00-15:15

2 stops26h 15m

£550

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Fri 6/11

07:00-17:05

3 stops27h 05m

Bangkok Suvarnabhumi

Fri 20/11

16:20-22:35

3 stops37h 15m

£554

BelfastSingapore

BFS Belfast Intl - SIN Singapore Changi

BFSSIN

Belfast Intl

Thu 1/10

17:30-13:15

3 stops36h 45m

Singapore Changi

Thu 8/10

20:00-19:30

2 stops30h 30m

£555

BelfastSingapore

BFS Belfast Intl - SIN Singapore Changi

BFSSIN

Belfast Intl

Wed 30/9

20:10-14:50

3 stops35h 40m

Singapore Changi

Wed 7/10

20:00-22:20

3 stops33h 20m

£579

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 40 resultsSorted by cheapest first

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.

BFS-BKK

BFS-KUL

BFS-HKT

BFS-SIN

BFS-MNL

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

BFS-zzYJX

BFS-BKK

BFS-KUL

BFS-HKT

BFS-SIN

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

Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Southeast Asia (average of £525). Flying from Belfast Intl Airport to Southeast Asia in December is currently the most expensive (average of £1,434). 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.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with KLM,Qatar Airways, andChina Southern 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.

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

KLM

7.8

Good

1,560 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Qatar Airways

7.4

Good

3,740 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

China Southern

7.4

Good

176 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

British Airways

6.7

Okay

8,179 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

What are the most popular routes from Belfast Intl Airport to Southeast Asia?
When deciding which route to take from Belfast Intl Airport to Southeast Asia consider Belfast Intl - Bangkok Suvarnabhumi, Belfast Intl - Manila Ninoy Aquino Intl or Belfast Intl - Kuala Lumpur Intl as they are the most popular.
Can I find deals for flights from Belfast Intl to Southeast Asia that include hotel bookings?
Yes. In addition to deals on Belfast Intl to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast Intl 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 Intl to Southeast Asia.
Can I find deals for business class flights from Belfast Intl to Southeast Asia?
Yes. Cheapflights offers flight deals from Belfast Intl 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 Intl Airport to Southeast Asia?
Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Southeast Asia (average of £525). Flying from Belfast Intl Airport to Southeast Asia in December is currently the most expensive (average of £1,434). 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

Alternative routes

Complete your trip

Direct flights to

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Popular flights

Alternative routes for Belfast Intl to Southeast Asia

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Top 4 airlines flying from Belfast Intl to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£447	Average£752	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
British Airways	Cheapest£649	Average£769	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£651	Average£947	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Qatar Airways	Cheapest£815	Average£1,110	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

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.

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Cheap flights from Belfast Intl Airport to Southeast Asia from £248

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 19 August 2026.

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 19 August 2026.

Best flights from Belfast Intl to Southeast AsiaDiscover carefully curated flight deals from Belfast Intl to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Discover carefully curated flight deals from Belfast Intl to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Last-minute flights from Belfast Intl to Southeast AsiaDiscover last-minute flight deals from Belfast Intl to Southeast Asia. Data last updated 19 August 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Southeast Asia. Data last updated 19 August 2026 and is based on user searches.

One-way flights from Belfast Intl to Southeast AsiaSearch for one-way flight options from Belfast Intl to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

Search for one-way flight options from Belfast Intl to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

Find flight deals from Belfast Intl to Southeast Asia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to Southeast Asia that are best for you.

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.

Cheapflights Insights

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

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with KLM,Qatar Airways, andChina Southern 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.

Related info for your journey

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

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

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

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

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

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 Belfast Intl to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southeast Asia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Belfast Intl to Southeast Asia by cabin class

Find flights from Belfast Intl to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast Intl and Southeast Asia flights

Browse other Belfast Intl and Southeast Asia flight options. Last updated on 19 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 4 airlines flying from Belfast Intl to Southeast Asia

Fly with Cheapflights

How does Cheapflights help users find flights from Belfast Intl to Southeast Asia?

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Southeast Asia?

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

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

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Book with Flexibility

Travel Smart

Cheapest flights from Belfast Intl to Southeast Asia
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 19 August 2026.

Best flights from Belfast Intl to Southeast Asia
Discover carefully curated flight deals from Belfast Intl to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Last-minute flights from Belfast Intl to Southeast Asia
Discover last-minute flight deals from Belfast Intl to Southeast Asia. Data last updated 19 August 2026 and is based on user searches.

One-way flights from Belfast Intl to Southeast Asia
Search for one-way flight options from Belfast Intl to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.