£345 Find Cheap Flights from Belfast Intl Airport to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast Intl to Southeast Asia departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Belfast Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours

Manila
Manila3 stops£944
Singapore
Singapore2 stops£549
Phnom Penh
Phnom Penh3 stops£734

Cheap Flight Deals from Belfast Intl to Southeast Asia (BFS-zzYJX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast Intl to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Belfast Intl to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Belfast Intl to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
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07:00 - 02:10BFS-SIN
36h 10m2 stops
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16:00 - 10:30SIN-BFS
25h 30m2 stops
Sun, 8 Jun - Sun, 15 Jun
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07:15 - 02:10BFS-SIN
35h 55m3 stops
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16:00 - 10:30SIN-BFS
25h 30m2 stops
Sun, 8 Jun - Sun, 15 Jun
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09:55 - 20:10BFS-SIN
27h 15m2 stops
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00:55 - 07:45SIN-BFS
37h 50m2 stops
Sun, 8 Jun - Sat, 14 Jun
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07:15 - 02:10BFS-SIN
35h 55m3 stops
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10:15 - 12:10SIN-BFS
32h 55m3 stops
Sun, 8 Jun - Sun, 15 Jun
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08:35 - 12:20BFS-SIN
20h 45m2 stops
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20:00 - 15:30SIN-BFS
26h 30m2 stops
Sat, 7 Jun - Sat, 14 Jun
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09:40 - 20:10BFS-SIN
27h 30m2 stops
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00:55 - 20:05SIN-BFS
26h 10m2 stops
Sat, 7 Jun - Fri, 13 Jun
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15:35 - 12:20BFS-SIN
37h 45m3 stops
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01:40 - 22:35SIN-BFS
27h 55m2 stops
Sat, 7 Jun - Fri, 13 Jun
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15:35 - 12:20BFS-SIN
37h 45m3 stops
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07:15 - 15:30SIN-BFS
39h 15m3 stops
Sat, 7 Jun - Sat, 14 Jun
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15:35 - 12:20BFS-SIN
37h 45m3 stops
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10:35 - 09:25SIN-BFS
29h 50m2 stops
Sat, 7 Jun - Sat, 14 Jun
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09:20 - 17:25BFS-BKK
26h 05m2 stops
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17:10 - 22:20BKK-BFS
35h 10m3 stops
Fri, 18 Jul - Sun, 3 Aug

KAYAK's insights & trends for Belfast Intl to Southeast Asia flights

Get data-powered insights and trends into flights from Belfast Intl to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from Belfast Intl Airport to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost £894 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is £1,082.

What is the cheapest month to fly from Belfast Intl Airport to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast Intl Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Belfast Intl Airport to Southeast Asia is August, when tickets cost £605 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £1,090 and £984 respectively.

What’s the cheapest day of the week to fly from Belfast Intl Airport to Southeast Asia?

The average price of all round-trip flights from Belfast Intl Airport to Southeast Asia clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Belfast Intl Airport to Southeast Asia, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Southeast Asia, Thursday is the cheapest day to fly and Wednesday is the most expensive.

How far in advance should I book a flight from Belfast Intl Airport to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Belfast Intl Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from Belfast Intl Airport to Southeast Asia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know - Cheap tickets from Belfast Intl Airport to Southeast Asia

Low season

February

High season

September

Cheapest flight

£345
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 20% lower on average.
Flight from Belfast Intl Airport to Denpasar

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Belfast Intl Airport to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast Intl Airport to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast Intl Airport to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast Intl Airport to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast Intl Airport to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Belfast Intl Airport to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Belfast Intl Airport to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Belfast Intl to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast Intl to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1333 reviews
7.2Food
7.7Comfort
7.1Entertainment
8.4Crew
7.8Boarding
Airline reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

It was ok, not much more can be said, as long as airlines/aircraft manufacturers insist on cramming in as many seats as possible....best of a bad situations, seats are simply too uncomfortable to sit in for more than a few hours. Lack of flexible headrests not a help on long overnight flights either.

Liked some flight attendants. 1 was rude I'll not say her name I don't want to get her jn trouble on my flight back to Dallas from Doha. Very rude to some races of people clearly. She needs a better attitude and bedside manners. Asking her questions and she responds "WHAT" twice rudely like I was bothering her and "is it going to be cranberry or mango juice with an attitude".

I had to stay in the airport 15 even with a hotel reservation..i was refused to inter to qatar cuz the hotel was outside the airport. They could have offered a solution. It was really exhausting for me and my family.

They didn't board by zones and it was a free for all. The 16 hour flight was the most excruciating experience of my life and the seats were TINY... with no leg space and my feet were swollen immediately. The food was so bad it was inedible.

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

The only thing that could have been better, is that the food trays get left way to long after a meal. We had a snack 8 hrs into the trip, and they left us with the boxes and cups for way too long. It is not fun being trapped in your seat unnecessarily

Was downgraded from business to economy due to a faulty seat in business class. However when I boarded the plane there were no less than 5 free business class seats. Will never fly Qatar Airways again

Doha airport is huge , takes long time to reach gate .

Do not overbook flights and kick out confirmed ticketed passengers :-(

The rows of seats in economy class are seriously close to one another making eating and resting just about impossible - there is hardly any legroom. Anyone larger than average size would have an incredibly uncomfortable flight. I had to basically share my seat with the lady passenger next to me as she was too big to fit into her allotted seat.

Vast improvement needed in customer service. I couldn’t get the drink of my choice during both meals (i.e. sparking water and Diet Coke). I had used plastic cups falling onto me from the tray. No eye contact when they thank you on the way out signalling an insincere thank you.

Jia yung was the flight attendant that made this a miserable flight.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

AC not working, just slowly blowing room temperature air. Long taxi time does not help as well. Sweating all over the whole trip.

Did not take as cancelled 3 time so took another airline

It was a 2-hour flight so they didn't have much time for serving food. There was some turbulence so they could not serve hot coffee or tea for the safety reason. Good service, good tasting food, nice plane, a little bit of delay.

The IFE is quite unconvenient if using our own device. Not all passenger brought their own earphone/headphone.

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

Service / food has to be much better. Staff were not very attentive to requests. Requested for a second serve of coke and got a weird look back from the host! Was also told they don’t have extra water bottles when I requested for one before sleep! Dinner time food was very minimum and average.

An overnight Doha to KL. Great sleep, good service and tasty food in business class

LCY airport is an amazing airport and I love the flight from LCY to FRA with BA. Efficient, easy, comfortable and great luggage allownace with BA. I iused to fly predominantley LH, but the service and price - benefit ratio of Lufthansa has deteriorated a lot over the last 5 years. Whereas BA keeps an excellent service level with friendly staff.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The airplane was old. Some things didn’t work out of middle seat was broken. The rest was OK.

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

I have noticed that the airlines, including this flight, pretend there is going to be turbulence, announce such, and say they can’t do beverage service. There is no turbulence and the seat belt light goes off 10 minutes before they ask for tray tables up and seat belts back on. They are just trying to spend less money and it’s quite transparent

Very quick boarding. I was surprised we only got a small water and small thing of cookies, everything else was for purchase. No entertainment. Crew was excellent though.

Flight delayed in terms of boarding and Kayak was great in updating but the team on the groping at British Airways were really poor

A basic tea/ coffee and a snack could be provided especially for long distance flyers.

The information in the airport, and the app was different. Be aware. Different terminals in Stuttgart, so we had to walk a lot. It's a small airport so it wasn't a big deal, but it was ludicrous to see the error in the app.

Flight was delayed and there was boarding pass and flight information errors resulting in confusion and stress

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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