£259 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 15/2. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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£769
Singapore
Singapore2 stops£629
Phuket City
Phuket City3 stops£470
Denpasar
Denpasar3 stops£576
Hanoi
Hanoi3 stops£520
Ho Chi Minh City
Ho Chi Minh City3 stops£580
Chiang Mai
Chiang Mai2 stops£560
Davao City
Davao City3 stops£804
Manila
Manila2 stops£769
Singapore
Singapore2 stops£629
Phuket City
Phuket City3 stops£470
Denpasar
Denpasar3 stops£576
Hanoi
Hanoi3 stops£520
Ho Chi Minh City
Ho Chi Minh City3 stops£580
Chiang Mai
Chiang Mai2 stops£560
Davao City
Davao City3 stops£804

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

Thu, 22 Jan - Sun, 8 Feb
Multiple Airlines Logo
06:30 - 18:25
BFS
-
BKK
28h 55m2 stops
Multiple Airlines Logo
19:55 - 17:55
BKK
-
BFS
29h 00m2 stops
£443Multiple Airlines
Sat, 21 Feb - Sat, 28 Feb
Multiple Airlines Logo
05:45 - 11:30
BFS
-
HKT
22h 45m3 stops
Multiple Airlines Logo
12:35 - 22:20
HKT
-
BFS
40h 45m3 stops
£470Multiple Airlines
Mon, 16 Feb - Thu, 26 Feb
Multiple Airlines Logo
15:00 - 21:45
BFS
-
HKT
47h 45m3 stops
Multiple Airlines Logo
19:10 - 21:05
HKT
-
BFS
32h 55m3 stops
£486Multiple Airlines
Sun, 25 Jan - Mon, 2 Feb
Multiple Airlines Logo
05:45 - 21:45
BFS
-
HKT
33h 00m3 stops
Multiple Airlines Logo
22:05 - 20:15
HKT
-
BFS
29h 10m2 stops
£526Multiple Airlines
Sun, 22 Feb - Sun, 1 Mar
Multiple Airlines Logo
23:05 - 21:05
BFS
-
BKK
39h 00m3 stops
Multiple Airlines Logo
15:30 - 18:55
BKK
-
BFS
34h 25m2 stops
£527Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
05:45 - 21:45
BFS
-
HKT
33h 00m3 stops
Multiple Airlines Logo
00:05 - 21:15
HKT
-
BFS
28h 10m3 stops
£533Multiple Airlines
Fri, 20 Feb - Fri, 27 Feb
Multiple Airlines Logo
06:00 - 08:45
BFS
-
KUL
42h 45m3 stops
Multiple Airlines Logo
09:35 - 08:50
KUL
-
BFS
31h 15m2 stops
£539Multiple Airlines
Mon, 16 Feb - Thu, 26 Feb
Multiple Airlines Logo
15:00 - 21:45
BFS
-
HKT
47h 45m3 stops
Multiple Airlines Logo
22:50 - 20:25
HKT
-
BFS
28h 35m2 stops
£552Multiple Airlines
Mon, 2 Feb - Sun, 15 Feb
Multiple Airlines Logo
10:20 - 22:20
BFS
-
CNX
29h 00m2 stops
Multiple Airlines Logo
23:20 - 20:10
CNX
-
BFS
27h 50m2 stops
£560Multiple Airlines
Mon, 11 May - Mon, 25 May
Multiple Airlines Logo
06:10 - 22:00
BFS
-
HKT
33h 50m2 stops
Multiple Airlines Logo
00:20 - 07:30
HKT
-
BFS
37h 10m2 stops
£563Multiple Airlines
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 £201 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 £582 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of return tickets is £1,068 and £889 respectively.

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

Low seasonApril
Cheapest flight£259
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (30% 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.

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 1434 reviews
7.6Comfort
7.1Entertainment
7.2Food
7.8Boarding
8.4Crew
Airline reviews

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

8.0 ExcellentKevin, Nov 2025
HEL - AMS
Read more KLM reviews

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

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.

I am a big person and have back pain and swelling in my legs, so this was a challenging flight due to confined space. I didn't find the crew very friendly either. I will think twice before flying long distances with Qatar again, due to the lack of legroom.

I appreciated the vailability of wheelchair services for persons with mobility issues all the way up to the aircraft. What could be better would be the food choices.

Initial booking was confusing and had to get new CC issued.

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.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Late. And service was very slow - passengers sat for well over an hour with dirty trays etc surrounding them

Entertainment devices on A380 need to be fixed, the seats might do with updates.

I like everything about British Airways. Excellence. Perfect. Exquisite service.

The plane was dirty the food was awful and the boarding process took too long

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

The business class seating arrangement for LHR to MAA was very uncomfortable. The movie options were terrible.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports