£295 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 15/5. 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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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£715
Denpasar
Denpasar3 stops£890
Singapore
Singapore2 stops£531
Phuket City
Phuket City3 stops£793
Koh Samui
Koh Samui3 stops£1,165

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

Low season

February

High season

September

Cheapest flight

£295
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly and prices are also 14% 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 tips for finding a cheap flight from Belfast Intl Airport to Southeast Asia

  • Book at least 1 week before departure in order to get a below-average price for flights from Belfast Intl Airport to Southeast Asia.
  • High season is considered to be January, November and December. The cheapest month to fly from Belfast Intl Airport to Southeast Asia is February.

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
7.3Food
7.7Comfort
8.4Crew
7.2Entertainment
7.8Boarding
Airline reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

2.0 Mediocredale, Feb 2025ACC - AMS
Read more KLM reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

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.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

Transavia flight. Couldn't select seat or anything prior to flight. No connection with klm systems. Seats are very crammed. Extremely no frills.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

Overall a very pleasant flight. No significant issues on either flight. Amsterdam airport is very convenient for connecting

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.

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 .

Moved seats, didn't accommodate requests to change seats even though other seats were available.

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

Being a QR Platinum member traveling in business class, I expected the staff to be more courteous. Unfortunately, the lady staff was rude attending business class 1K side.

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.

Do I need to repeat my complaints about my lost carry on bag?

Overall experience was OK. Seats were truly uncomfortable for such a long flight. Food quality was mediocre at best. The staff was great though!

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

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

We found the bag drop/ check-in proceedure at T5 unnecessarily complicated. We paid extra for seat selection in advance and were allocated worse seats at T5. We found the check-in person was not particularly helpful although the the staff at the gate were super good.

Very dated plane. Seat was firm and uncomfortable. Entertainment system almost laughably outdated. Poor audio. Picture was always too dark.

The worst travel experience of my life. Boarding chaos, delays and disorganisation at every stage. The worst of many was sitting in freezing temperatures for 10 hours whilst asking all cabin crew to turn the heat up to no avail.

The seats on the plane and at Heathrow Airport are so uncomfortable

BA have long since lost their way. They are a budget airline without the budget fares. Everything from booking to boarding to flying to arrival is just plain ordinary. I fly BA if the only alternative is Ryanair who are even worse. Otherwise we fly KLM or Lufthansa who are so much better.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Good flight, awful, vindictive, vile customer services in T5 Heathrow.

Denied boarding passes for connecting flight. Missed connection as a result. Customer services T5 Heathrow airport vile, arrogant people who lied to us and threatened us.

Ok we did get an upgrade and the flight was delayed 45 minutes BUT without any bias. The crew were excellent, friendly, efficient and verging on exuberant, they all were so happy to do their jobs. Food excellent and the new safety video is fun to watch.

Book cheap flights from Belfast to Southeast Asia

Cheapest flights to Southeast Asia from Belfast found in 2025

Recent return flight deals

 
These are the cheapest return flights from Belfast to Southeast Asia found on KAYAK in the last 72 hours.
30/5Fri
2 stops
26h 55mBFS-SIN
26/6Thu
2 stops
36h 55mSIN-BFS
£531
17/5Sat
2 stops
23h 00mBFS-BKK
16/6Mon
2 stops
35h 20mBKK-BFS
£535
16/4Wed
2 stops
37h 15mBFS-BKK
11/5Sun
2 stops
36h 40mBKK-BFS
£543
16/4Wed
2 stops
47h 30mBFS-BKK
12/5Mon
2 stops
27h 00mBKK-BFS
£566
30/5Fri
3 stops
38h 25mBFS-SIN
26/6Thu
2 stops
31h 45mSIN-BFS
£636
30/5Fri
3 stops
38h 25mBFS-SIN
26/6Thu
3 stops
36h 20mSIN-BFS
£651
30/5Fri
3 stops
38h 25mBFS-SIN
25/6Wed
2 stops
26h 00mSIN-BFS
£654
21/4Mon
3 stops
37h 05mBFS-BKK
28/4Mon
3 stops
43h 35mBKK-BFS
£693
21/4Mon
2 stops
41h 05mBFS-BKK
28/4Mon
3 stops
43h 35mBKK-BFS
£698
5/4Sat
2 stops
29h 05mBFS-SIN
12/4Sat
2 stops
35h 15mSIN-BFS
£699

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Belfast to Southeast Asia found on KAYAK in the last 72 hours.
15/5Thu
3 stops
44h 40mBFS-DPS
£295
26/3Wed
3 stops
42h 55mBFS-MNL
£305
4/3Tue
3 stops
38h 45mBFS-MNL
£309
26/3Wed
2 stops
31h 00mBFS-MNL
£352
4/3Tue
2 stops
46h 45mBFS-MNL
£368
15/5Thu
2 stops
54h 20mBFS-DPS
£373
2/7Wed
2 stops
33h 40mBFS-BKK
£630
15/7Tue
3 stops
29h 30mBFS-DPS
£777
15/7Tue
2 stops
25h 45mBFS-DPS
£795

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Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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