Cheap flights from Belfast Intl Airport to Bangkok from £244

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Belfast Intl to Bangkok are usually found in May or August, booked 49 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap flight deals from Belfast Intl to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Bangkok (TH1). 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 17 September 2025.

Round-trip from

£455

One-way from

£244

Popular in

December

Cheapest in

May

Average price

£637
10/11-27/11
  • 10/11-27/11
  • 6 total stops
  • 79h 50m total
  • Belfast to Bangkok
28/9
  • 28/9
  • 3 total stops
  • 55h 15m total
  • Belfast to Bangkok
Highest demand for flights based on searches. 8% potential increase in price (£48 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Belfast Intl to Bangkok

Cheapest flights from Belfast Intl to Bangkok
Explore the most affordable flight options available from Belfast Intl to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Mon 10/1109:00BFS - BKK
3 stops42h 05mMultiple Airlines
Thu 27/1101:35BKK - BFS
3 stops37h 45mMultiple Airlines
Deal found 15/9£455
Fri 31/1021:20BFS - BKK
3 stops40h 45mMultiple Airlines
Fri 7/1112:20BKK - BFS
3 stops33h 50mMultiple Airlines
Deal found 16/9£498
Sun 9/1114:45BFS - BKK
2 stops22h 40mMultiple Airlines
Thu 27/1120:00BKK - BFS
1 stop20h 45mMultiple Airlines
Deal found 15/9£521
Tue 11/1106:00BFS - BKK
2 stops26h 05mMultiple Airlines
Thu 27/1120:00BKK - BFS
1 stop20h 45mMultiple Airlines
Deal found 15/9£540
Mon 10/1109:55BFS - BKK
2 stops27h 30mMultiple Airlines
Thu 27/1120:00BKK - BFS
1 stop20h 45mMultiple Airlines
Deal found 15/9£546
Wed 29/1020:55BFS - BKK
3 stops44h 15mMultiple Airlines
Wed 5/1112:30BKK - BFS
2 stops42h 25mMultiple Airlines
Deal found 14/9£559

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Bangkok 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 17 September 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Bangkok that are best for you.

Fly from

Belfast Intl

Fly to

Bangkok

Route

Depart

Return

Price

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 10/11

09:00-18:05

2 stops26h 05m

Bangkok Suvarnabhumi

Thu 27/11

01:30-08:20

2 stops37h 50m

£467

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 31/10

21:20-21:05

3 stops40h 45m

Bangkok Suvarnabhumi

Fri 7/11

12:20-15:10

3 stops33h 50m

£498

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 11/11

06:00-15:05

2 stops26h 05m

Bangkok Suvarnabhumi

Thu 27/11

20:00-09:45

1 stop20h 45m

£540

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 29/10

20:55-00:10

3 stops44h 15m

Bangkok Suvarnabhumi

Wed 5/11

12:30-23:55

2 stops42h 25m

£559

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 3/10

06:05-22:40

3 stops34h 35m

Bangkok Suvarnabhumi

Fri 24/10

05:05-22:25

2 stops23h 20m

£584

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 13/11

09:40-18:05

2 stops25h 25m

Bangkok Suvarnabhumi

Thu 27/11

20:00-09:45

1 stop20h 45m

£591

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 9/11

08:55-10:25

1 stop18h 30m

Bangkok Suvarnabhumi

Thu 27/11

20:00-09:45

1 stop20h 45m

£604

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 28/9

09:25-22:40

3 stops55h 15m

£244

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 25/11

16:50-10:05

3 stops58h 15m

£272

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 3/10

16:00-22:40

3 stops48h 40m

£279

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 16 results
1
2

Best time to book a flight from Belfast Intl to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok 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

How far ahead should I book a flight from Belfast Intl Airport to Bangkok?

Use this chart to determine the optimal time to book a return flight from Belfast Intl to Bangkok. Price data was last updated on 12 September 2025.

The best time to book flights from Belfast Intl Airport to Bangkok is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok (average of £717). Flying from Belfast Intl Airport to Bangkok in December is currently the most expensive (average of £1,123). 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.

What is the cheapest time of day to fly from BFS to BKK?

Find hourly flight availability from Belfast Intl to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 23% on flights from Belfast Intl Airport to Bangkok by exploring options for tickets in the afternoon.

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated 17 September 2025.
Check out reviews from past customers who have flown with KLM and British Airways from Belfast Intl Airport to Bangkok to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Bangkok. 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 round-trip?

    Cheapflights users have booked flights from Belfast Intl Airport to Bangkok round-trip from £553. Another airline that can offer you cheap pricing is British Airways. Users have found that KLM is 25% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok (average of £717). Flying from Belfast Intl Airport to Bangkok in December is currently the most expensive (average of £1,123). 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

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Alternative routes for Belfast Intl to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Belfast Intl to Bangkok

Discover the top 2 airlines that operate flights from Belfast Intl to Bangkok. 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£553Average£705FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£615Average£703FlexibilityNo 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 Bangkok?

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

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Can Cheapflights find flights from Belfast Intl to Bangkok 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 Bangkok, users can toggle the no change fees filter when performing a flight search.

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