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.

£256+ 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 24 August 2026.

Wed 21/1009:55 -

3 stops25h 30m

Wed 28/1009:20 -

1 stop17h 50m

Deal found 20/8£456

Sun 20/914:40 -

2 stops41h 20m

Wed 30/917:55 -

2 stops33h 30m

Deal found 23/8£493

Tue 13/1006:40 -

3 stops24h 45m

Thu 29/1014:50 -

1 stop24h 55m

Deal found 24/8£540

Mon 5/1015:50 -

2 stops34h 00m

Mon 12/1011:20 -

2 stops34h 10m

Deal found 21/8£544

Thu 8/1006:10 -

2 stops29h 30m

Thu 15/1008:45 -

2 stops29h 10m

Deal found 24/8£566

Sun 4/1021:10 -

2 stops31h 35m

Sun 11/1018:40 -

2 stops31h 35m

Deal found 20/8£587

Sun 4/1013:25 -

2 stops23h 20m

Sun 11/1009:45 -

2 stops29h 00m

Deal found 20/8£602

Wed 7/1007:30 -

2 stops22h 15m

Wed 14/1020:00 -

2 stops26h 20m

Deal found 23/8£614

Tue 20/1008:55 -

3 stops29h 20m

Sat 31/1019:25 -

3 stops32h 50m

Deal found 20/8£639

Mon 5/1008:40 -

2 stops29h 35m

Mon 12/1010:20 -

2 stops30h 40m

Deal found 21/8£677

Sun 4/1006:25 -

3 stops35h 10m

Sat 17/1017:35 -

3 stops34h 55m

Deal found 22/8£732

Sat 3/1006:20 -

2 stops21h 15m

Sat 10/1017:45 -

2 stops35h 55m

Deal found 20/8£748

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 24 August 2026.

Wed 21/1009:55 -

3 stops25h 30m

Wed 28/1009:20 -

1 stop17h 50m

Deal found 20/8£456

Tue 13/1006:40 -

3 stops24h 45m

Thu 29/1014:50 -

1 stop24h 55m

Deal found 24/8£540

Thu 8/1006:10 -

2 stops29h 30m

Thu 15/1008:45 -

2 stops29h 10m

Deal found 24/8£566

Mon 5/1019:35 -

3 stops30h 15m

Mon 12/1021:00 -

3 stops25h 15m

Deal found 21/8£584

Sun 4/1006:25 -

2 stops29h 15m

Sun 11/1009:25 -

3 stops28h 45m

Deal found 20/8£609

Tue 20/1010:35 -

3 stops31h 20m

Tue 17/1105:55 -

2 stops22h 35m

Deal found 24/8£613

Wed 7/1007:30 -

2 stops22h 15m

Wed 14/1020:00 -

2 stops26h 20m

Deal found 23/8£614

Wed 28/1006:25 -

2 stops28h 25m

Sat 27/201:55 -

2 stops22h 55m

Deal found 21/8£624

Wed 20/106:25 -

3 stops25h 05m

Tue 9/217:35 -

3 stops24h 30m

Deal found 20/8£675

Mon 5/1008:40 -

2 stops29h 35m

Mon 12/1010:20 -

2 stops30h 40m

Deal found 21/8£677

Wed 20/106:25 -

3 stops30h 20m

Mon 8/202:45 -

2 stops26h 45m

Deal found 20/8£703

Sat 17/1007:40 -

3 stops31h 05m

Fri 30/1020:00 -

3 stops26h 15m

Deal found 22/8£729

Sun 4/1006:25 -

3 stops35h 10m

Sat 17/1017:35 -

3 stops34h 55m

Deal found 22/8£732

Sat 3/1006:20 -

2 stops21h 15m

Sat 10/1017:45 -

2 stops35h 55m

Deal found 20/8£748

Thu 1/1008:15 -

3 stops29h 20m

Thu 15/1019:45 -

3 stops31h 30m

Deal found 24/8£835

Wed 7/1009:35 -

3 stops26h 40m

Wed 14/1017:35 -

3 stops33h 40m

Deal found 23/8£1,047

Fri 4/1219:20 -

3 stops31h 30m

Sat 9/105:20 -

3 stops25h 15m

Deal found 23/8£1,267

Sat 26/1206:15 -

2 stops21h 00m

Sun 3/115:50 -

3 stops32h 45m

Deal found 21/8£1,271

Sat 12/1206:00 -

3 stops29h 55m

Sat 9/105:20 -

3 stops25h 15m

Deal found 22/8£1,283

Sat 19/1207:00 -

2 stops33h 05m

Sat 2/102:55 -

2 stops41h 30m

Deal found 22/8£1,367

Find flight deals from Belfast Intl to Southeast Asia

Round-trip from	£456
One-way from	£256
Popular in	February
Cheapest in	September
Average price	£672

21/10-28/10
4 total stops
43h 20m total
Belfast to Southeast Asia

Search Deals

31/8
3 total stops
50h 40m total
Belfast to Southeast Asia

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£44 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£8 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

Fastest return journey

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Wed 21/10

09:55-17:25

3 stops25h 30m

Bangkok Suvarnabhumi

Wed 28/10

09:20-20:10

1 stop17h 50m

£456

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Tue 13/10

06:40-13:25

3 stops24h 45m

Bangkok Suvarnabhumi

Thu 29/10

14:50-08:45

1 stop24h 55m

£540

BelfastPhuket City

BFS Belfast Intl - HKT Phuket City

BFSHKT

Belfast Intl

Thu 8/10

06:10-17:40

2 stops29h 30m

Phuket City

Thu 15/10

08:45-07:55

2 stops29h 10m

£566

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Mon 5/10

19:35-07:50

3 stops30h 15m

Bangkok Suvarnabhumi

Mon 12/10

21:00-16:15

3 stops25h 15m

£584

BelfastPhuket City

BFS Belfast Intl - HKT Phuket City

BFSHKT

Belfast Intl

Sun 4/10

06:25-17:40

2 stops29h 15m

Phuket City

Sun 11/10

09:25-08:10

3 stops28h 45m

£609

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Tue 20/10

10:35-23:55

3 stops31h 20m

Bangkok Suvarnabhumi

Tue 17/11

05:55-21:30

2 stops22h 35m

£613

BelfastSingapore

BFS Belfast Intl - SIN Singapore Changi

BFSSIN

Belfast Intl

Wed 7/10

07:30-12:45

2 stops22h 15m

Singapore Changi

Wed 14/10

20:00-15:20

2 stops26h 20m

£614

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Wed 28/10

06:25-17:50

2 stops28h 25m

Bangkok Suvarnabhumi

Sat 27/2

01:55-17:50

2 stops22h 55m

£624

BelfastKuala Lumpur

BFS Belfast Intl - KUL Kuala Lumpur Intl

BFSKUL

Belfast Intl

Wed 20/1

06:25-15:30

3 stops25h 05m

Kuala Lumpur Intl

Tue 9/2

17:35-10:05

3 stops24h 30m

£675

BelfastSingapore

BFS Belfast Intl - SIN Singapore Changi

BFSSIN

Belfast Intl

Mon 5/10

08:40-21:15

2 stops29h 35m

Singapore Changi

Mon 12/10

10:20-10:00

2 stops30h 40m

£677

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 30 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-SIN

BFS-BKK

BFS-MNL

BFS-HKT

BFS-KUL

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-SIN

BFS-BKK

BFS-MNL

BFS-HKT

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 £521). Flying from Belfast Intl Airport to Southeast Asia in August is currently the most expensive (average of £1,436). 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

1,565 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

1,565 reviews

KLM

7.8

Good

1,565 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

3,734 reviews

KLM

7.8

Good

1,565 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

7.3

Good

172 reviews

KLM

7.8

Good

1,565 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

8,188 reviews

KLM

7.8

Good

1,565 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 £521). Flying from Belfast Intl Airport to Southeast Asia in August is currently the most expensive (average of £1,436). 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

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Belfast Intl to Southeast Asia

Belfast Intl to Suvarnabhumi flights

Belfast Intl to Bangalore flights

Belfast City to Suvarnabhumi flights

Belfast Intl to Narita flights

Belfast City to Bangalore flights

Belfast Intl to Manila flights

Belfast City to Manila flights

Belfast Intl to Haneda flights

Belfast City to Narita flights

Belfast City to Haneda flights

Belfast Intl to New Delhi flights

Belfast City to New Delhi flights

Belfast City to Kuala Lumpur Intl flights

Belfast Intl to Kuala Lumpur Intl flights

Belfast Intl to Hong Kong flights

Belfast Intl to Kathmandu flights

Belfast City to Hong Kong flights

Belfast Intl to Singapore flights

Belfast City to Kathmandu flights

Belfast Intl to Denpasar flights

Belfast Intl to Hyderabad flights

Belfast Intl to Phuket City flights

Belfast City to Singapore flights

Belfast Intl to Tbilisi flights

Belfast City to Tbilisi flights

Belfast City to Denpasar flights

Belfast City to Karachi flights

Belfast Intl to Karachi flights

Belfast Intl to Incheon Intl flights

Belfast City to Incheon Intl flights

Belfast City to Chiang Mai flights

Belfast Intl to Taiwan Taoyuan Intl flights

Belfast Intl to Chiang Mai flights

Top 4 airlines flying from Belfast Intl to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£444	Average£746	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
British Airways	Cheapest£644	Average£763	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£646	Average£940	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Qatar Airways	Cheapest£809	Average£1,102	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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Belfast Intl Airport to Southeast Asia from £256

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 31/8. 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 24 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 24 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 24 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 24 August 2026.

Last-minute flights from Belfast Intl to Southeast AsiaDiscover last-minute flight deals from Belfast Intl to Southeast Asia. Data last updated 24 August 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Southeast Asia. Data last updated 24 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 24 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 24 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 24 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?

100% Free

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 24 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 24 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 24 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 24 August 2026.