£286 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 15/11. 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, 0 bags

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
Manila3 stops£694
Singapore
Singapore3 stops£892
Denpasar
Denpasar3 stops£1,124
Phuket City
Phuket City2 stops£1,043
Penang
Penang3 stops£1,515
Davao City
Davao City3 stops£1,113
Manila
Manila3 stops£694
Singapore
Singapore3 stops£892
Denpasar
Denpasar3 stops£1,124
Phuket City
Phuket City2 stops£1,043
Penang
Penang3 stops£1,515
Davao City
Davao City3 stops£1,113

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

Sun, 23 Nov - Mon, 8 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
12:40 - 16:15BKK-BFS
34h 35m2 stops
£444Multiple Airlines
Find Deal
Sun, 23 Nov - Sun, 7 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
01:55 - 21:55BKK-BFS
27h 00m2 stops
£470Multiple Airlines
Find Deal
Sun, 23 Nov - Mon, 8 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
12:30 - 07:55BKK-BFS
26h 25m1 stop
£474Multiple Airlines
Find Deal
Sun, 23 Nov - Mon, 8 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
10:10 - 21:30BKK-BFS
42h 20m3 stops
£477Multiple Airlines
Find Deal
Mon, 1 Dec - Sun, 7 Dec
Multiple Airlines Logo
06:40 - 02:15BFS-BKK
36h 35m2 stops
Multiple Airlines Logo
03:15 - 08:20BKK-BFS
36h 05m2 stops
£493Multiple Airlines
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
09:15 - 07:25BKK-BFS
29h 10m2 stops
£516Multiple Airlines
Find Deal
Sun, 23 Nov - Sun, 7 Dec
Multiple Airlines Logo
08:55 - 18:05BFS-BKK
26h 10m2 stops
Multiple Airlines Logo
01:30 - 08:20BKK-BFS
37h 50m2 stops
£532Multiple Airlines
Find Deal
Sun, 30 Nov - Sun, 7 Dec
Multiple Airlines Logo
05:45 - 16:10BFS-BKK
27h 25m3 stops
Multiple Airlines Logo
09:15 - 21:15BKK-BFS
43h 00m3 stops
£553Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
07:50 - 00:50BFS-BKK
34h 00m2 stops
Multiple Airlines Logo
12:40 - 21:10BKK-BFS
39h 30m2 stops
£560Multiple Airlines
Find Deal
Sun, 23 Nov - Mon, 8 Dec
Multiple Airlines Logo
08:55 - 10:05BFS-BKK
42h 10m2 stops
Multiple Airlines Logo
12:30 - 08:20BKK-BFS
26h 50m1 stop
£576Multiple 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 £208 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 £609 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £1,056 and £909 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£286
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 £684 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 £828.

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 1405 reviews
8.4Crew
7.8Boarding
7.1Entertainment
7.3Food
7.7Comfort
Airline reviews

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.

4.0 OkayMarcel, Oct 2025JFK - AMS
Read more KLM reviews

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.

Klm start boarding while somw air issue in the plan

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Crew and food was good, ok leg room if you don’t have a big box under the seat. And the seats are so narrow (I’m only 70kg), will consider an alternate airline next time

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

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.

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

We always use BA due to the direct flight options, we have always had a pleasant flight with BA.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

Flight was 3h50 and was only provided with a packet of oat cookies and offered a cold drink. Thankfully i'd had breakfast but for a morning flight of that length some sort of breakfast should be included. There were 2 toilets for economy but due to turbulence we couldn't use them until the last 1hr which meant the queue was then huge. Would've been nice to open up the business one for those closest to the front to use.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

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