£342 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 26/11. 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.
1 adult
1 adult, Economy

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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Cheap Flights from Belfast Intl to Southeast Asia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Manila
Manila2 stops£610
Singapore
Singapore2 stops£421
Denpasar
Denpasar3 stops£592
Phuket City
Phuket City2 stops£919
Hanoi
Hanoi2 stops£548
Manila
Manila2 stops£610
Singapore
Singapore2 stops£421
Denpasar
Denpasar3 stops£592
Phuket City
Phuket City2 stops£919
Hanoi
Hanoi2 stops£548

Book Cheap Belfast Intl to Southeast Asia Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast Intl to Southeast Asia

Sat, 8 Nov - Wed, 12 Nov
Multiple Airlines Logo
19:45 - 16:15BFS-SIN
36h 30m2 stops
Multiple Airlines Logo
17:50 - 15:55SIN-BFS
30h 05m2 stops
£421Multiple Airlines
Find Deal
Tue, 11 Nov - Sat, 15 Nov
Multiple Airlines Logo
20:55 - 17:20BFS-SIN
36h 25m3 stops
Multiple Airlines Logo
19:40 - 23:50SIN-BFS
36h 10m3 stops
£528Multiple Airlines
Find Deal
Thu, 23 Oct - Mon, 3 Nov
Multiple Airlines Logo
09:25 - 20:25BFS-BKK
29h 00m2 stops
Multiple Airlines Logo
12:40 - 21:10BKK-BFS
39h 30m2 stops
£530Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 26 Nov
Multiple Airlines Logo
20:55 - 23:00BFS-KUL
42h 05m3 stops
Multiple Airlines Logo
09:35 - 09:20KUL-BFS
31h 45m2 stops
£532Multiple Airlines
Find Deal
Thu, 23 Oct - Mon, 3 Nov
Multiple Airlines Logo
09:25 - 20:25BFS-BKK
29h 00m2 stops
Multiple Airlines Logo
12:40 - 21:10BKK-BFS
39h 30m3 stops
£548Multiple Airlines
Find Deal
Tue, 11 Nov - Fri, 14 Nov
Multiple Airlines Logo
20:55 - 17:20BFS-SIN
36h 25m3 stops
Multiple Airlines Logo
02:45 - 22:00SIN-BFS
27h 15m2 stops
£552Multiple Airlines
Find Deal
Sun, 23 Nov - Sun, 30 Nov
Multiple Airlines Logo
05:45 - 18:05BFS-BKK
29h 20m2 stops
Multiple Airlines Logo
09:15 - 09:10BKK-BFS
30h 55m2 stops
£553Multiple Airlines
Find Deal
Thu, 23 Oct - Mon, 3 Nov
Multiple Airlines Logo
09:25 - 20:25BFS-BKK
29h 00m2 stops
Multiple Airlines Logo
12:30 - 09:05BKK-BFS
27h 35m1 stop
£556Multiple Airlines
Find Deal
Sun, 23 Nov - Sun, 30 Nov
Multiple Airlines Logo
05:45 - 00:10BFS-BKK
35h 25m2 stops
Multiple Airlines Logo
09:15 - 21:55BKK-BFS
43h 40m3 stops
£558Multiple Airlines
Find Deal
Sat, 8 Nov - Wed, 12 Nov
Multiple Airlines Logo
10:35 - 10:00BFS-SIN
39h 25m3 stops
Multiple Airlines Logo
18:30 - 16:00SIN-BFS
29h 30m2 stops
£558Multiple Airlines
Find Deal
Booking Insights

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.

Can I save money by flying with a stopover from Belfast Intl Airport to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £194 on average.

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 May, when tickets cost £598 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £1,037 and £892 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.

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

Low seasonApril
Cheapest flight£257
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from Belfast Intl Airport to Bangkok

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.

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

    The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost £671 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 £813.

Reviews of the top 3 airlines flying 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.
7.7
KLMOverall score based on 1401 reviews
7.6Comfort
7.1Entertainment
7.8Boarding
7.2Food
8.4Crew
Airline reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

2.0 MediocreElizabeth, Oct 2025CDG - AMS
Read more KLM reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Seated in row 6 you are separated from business class close to the toilets. The is a high panel in front that obscures forward viewing, coupled with no window view. Service is limited as the area is not in view of the attendants. It is closer in proximity to economy than business class.

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

The flight was delayed and one member of the crew was a bit rude. But apart from that all good.

I would love the entertainment center to be updated with more content. The flight to Doha had more options than the one to Miami

I wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

I felt that when I was rerouted it should have been to business class.

Terrible experience resolving missed connection after flight was delayed. 3 hour queue at transit desk, not enough staff, no organisation, worst ever flying experience.

The seats were uncomfortable. The service was poor. We bought internet for my family and myself and it didn’t work. The charger for our phone didn’t work. The service seemed like they were tired and exhausted and seemed a bit upset. It was not a good flight. Our flight from miami to Qatar was great but from Qatar to Tokyo was simply awful

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.

Very bad.i will never book British flights for future

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

It was perfect. The service was exceptional. I would never want to cross the Atlantic in anyone else's sardine tins.

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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