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Cheap flights from Belfast Intl Airport to Bangkok Suvarnabhumi Airport from £440

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
23 May — 30 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Suvarnabhumi
Explore the most affordable flight options available from Belfast Intl to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 April 2026.

Fri 12/617:05
BFS
-
BKK
3 stops43h 05m
Multiple Airlines
Sun 5/720:15
BKK
-
BFS
3 stops28h 10m
Multiple Airlines
Deal found 18/4£565
Mon 1/619:35
BFS
-
BKK
3 stops40h 35m
Multiple Airlines
Sun 28/620:15
BKK
-
BFS
3 stops28h 10m
Multiple Airlines
Deal found 21/4£570
Mon 5/1008:55
BFS
-
BKK
3 stops39h 20m
Multiple Airlines
Mon 26/1012:45
BKK
-
BFS
1 stop26h 10m
Multiple Airlines
Deal found 19/4£584
Thu 4/612:45
BFS
-
BKK
3 stops24h 15m
Multiple Airlines
Fri 3/703:15
BKK
-
BFS
3 stops36h 20m
Multiple Airlines
Deal found 19/4£596
Thu 25/606:40
BFS
-
BKK
3 stops35h 10m
Multiple Airlines
Sun 12/720:15
BKK
-
BFS
3 stops31h 15m
Multiple Airlines
Deal found 22/4£671
Fri 5/620:15
BFS
-
BKK
3 stops43h 30m
Multiple Airlines
Fri 12/620:15
BKK
-
BFS
3 stops31h 00m
Multiple Airlines
Deal found 21/4£690
Fri 30/1020:20
BFS
-
BKK
3 stops37h 45m
Multiple Airlines
Mon 30/1119:15
BKK
-
BFS
3 stops32h 05m
Multiple Airlines
Deal found 18/4£721

Find flight deals from Belfast Intl to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 April 2026.

Round-trip from

£565

One-way from

£440

Popular in

December

Cheapest in

August

Average price

£797
12/6-5/7
  • 12/6-5/7
  • 6 total stops
  • 71h 15m total
  • Belfast to Bangkok
Search Deals
30/6
  • 30/6
  • 3 total stops
  • 34h 15m total
  • Belfast to Bangkok
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Suvarnabhumi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 April 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 12/6

17:05-19:00

3 stops43h 55m

Bangkok Suvarnabhumi

Sun 5/7

15:05-18:25

2 stops33h 20m

£579

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 5/10

08:55-06:15

3 stops39h 20m

Bangkok Suvarnabhumi

Mon 26/10

12:45-07:55

1 stop26h 10m

£584

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 4/6

12:45-19:00

3 stops24h 15m

Bangkok Suvarnabhumi

Fri 3/7

03:15-09:35

3 stops36h 20m

£596

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 5/6

20:15-21:45

3 stops43h 30m

Bangkok Suvarnabhumi

Fri 12/6

20:15-11:55

2 stops21h 40m

£690
Fastest return journey

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 25/6

10:20-18:10

2 stops25h 50m

Bangkok Suvarnabhumi

Sun 12/7

09:45-09:40

2 stops29h 55m

£739

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 6/7

06:10-08:00

2 stops43h 50m

Bangkok Suvarnabhumi

Sun 26/7

02:50-23:10

2 stops26h 20m

£870
Cheapest one-way

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 5/7

07:10-23:50

3 stops34h 40m

£483

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sat 4/7

09:30-23:50

3 stops32h 20m

£531

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 2/7

08:10-18:10

3 stops28h 00m

£534
Fastest single journey

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 30/6

07:35-11:50

2 stops22h 15m

£582

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Belfast Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Bangkok Suvarnabhumi Airport

What is the cheapest month to book a flight from Belfast Intl Airport to Bangkok Suvarnabhumi Airport?

Currently, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok Suvarnabhumi Airport (average of £593). Flying from Belfast Intl Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,067). 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.

How much does it cost for a return flight from Belfast Intl Airport to Bangkok Suvarnabhumi Airport?

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Suvarnabhumi. Reviews last updated 23 April 2026.
Read reviews from past customers who have flown with KLM and British Airways from Belfast Intl Airport to Bangkok Suvarnabhumi Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,507 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,507 reviews
KLM
7.8
Good
1,507 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,906 reviews
KLM
7.8
Good
1,507 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Belfast Intl Airport to Bangkok Suvarnabhumi Airport round-trip?

    Currently priced at £572, KLM will fly you from Belfast Intl Airport to Bangkok Suvarnabhumi Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on British Airways for as low as £666. You may be able to fly from Belfast Intl Airport to Bangkok Suvarnabhumi Airport for 24% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl to Suvarnabhumi 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 Bangkok Suvarnabhumi Airport?

    Currently, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok Suvarnabhumi Airport (average of £593). Flying from Belfast Intl Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of £1,067). 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

Travelling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Cha-am
Kanchanaburi
Pak Chong
Chonburi
Ayutthaya
Ko Samet
Sattahip
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast Intl to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to Suvarnabhumi flights

Top 2 airlines flying from Belfast Intl to Suvarnabhumi

Discover the top 2 airlines that operate flights from Belfast Intl to Suvarnabhumi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£572Average£699FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£666Average£734FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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

Cheapflights helps you find that perfect flight to Suvarnabhumi from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Suvarnabhumi from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Belfast Intl to Suvarnabhumi and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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