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Cheap flights from Belfast Intl Airport to Southeast Asia

BFS — BKK
23 Oct — 30 Oct1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Belfast Intl to Southeast Asia

Popular in

December

Cheapest in

September

Average price

£666
Highest demand for flights based on searches. 31% potential increase in price (£298 potential increase over avg. return price).
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Cheapest flight prices on average. 12% potential price decrease (£76 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Southeast Asia

What is the cheapest month to book a flight from Belfast Intl Airport to Southeast Asia?

Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Southeast Asia (average of £487). Flying from Belfast Intl Airport to Southeast Asia in August is currently the most expensive (average of £1,541). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with KLM,Qatar Airways, andChina Southern from Belfast Intl Airport to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,575 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
KLM
7.8
Good
1,575 reviews
KLM
7.8
Good
1,575 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Qatar Airways
7.3
Good
3,732 reviews
KLM
7.8
Good
1,575 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
China Southern
7.3
Good
172 reviews
KLM
7.8
Good
1,575 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
British Airways
6.7
Okay
8,226 reviews
KLM
7.8
Good
1,575 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

  • What are the most popular routes from Belfast Intl Airport to Southeast Asia?

    When deciding which route to take from Belfast Intl Airport to Southeast Asia consider Belfast Intl - Manila Ninoy Aquino Intl, Belfast Intl - Kuala Lumpur Intl or Belfast Intl - Bangkok Suvarnabhumi as they are the most popular.

  • Can I find deals for flights from Belfast Intl to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Southeast Asia.

  • Can I find deals for business class flights from Belfast Intl to Southeast Asia?

    Yes. Cheapflights offers flight deals from Belfast Intl to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast Intl Airport to Southeast Asia?

    Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Southeast Asia (average of £487). Flying from Belfast Intl Airport to Southeast Asia in August is currently the most expensive (average of £1,541). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Belfast Intl to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£453Average£762FlexibilityNo cancel feeOn-time69%
Search China Southern flights
British AirwaysCheapest£659Average£747FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£659Average£960FlexibilityNo cancel feeOn-time75%
Search KLM flights
Qatar AirwaysCheapest£818Average£1,125FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Belfast Intl to Southeast Asia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast Intl to Southeast Asia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Southeast Asia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to Southeast Asia.

Can Cheapflights find flights from Belfast Intl to Southeast Asia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to Southeast Asia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Belfast Intl to Southeast Asia become cheaper?

Yes, Cheapflights offers price alerts on Belfast Intl to Southeast Asia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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