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Cheap flights from Belfast Intl Airport to Bangkok from £392

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Bangkok

Enter your travel dates to find the best prices.

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 30 March 2026.

Tue 26/508:50
BFS
-
BKK
3 stops39h 55m
Multiple Airlines
Tue 9/620:15
BKK
-
BFS
3 stops25h 00m
Multiple Airlines
Deal found 30/3£528
Mon 11/517:55
BFS
-
BKK
3 stops30h 50m
Multiple Airlines
Mon 18/509:40
BKK
-
BFS
3 stops32h 35m
Multiple Airlines
Deal found 27/3£548
Sun 10/522:05
BFS
-
BKK
3 stops43h 45m
Multiple Airlines
Sun 17/509:40
BKK
-
BFS
3 stops32h 40m
Multiple Airlines
Deal found 26/3£571
Fri 12/617:05
BFS
-
BKK
3 stops43h 05m
Multiple Airlines
Sun 5/720:15
BKK
-
BFS
3 stops28h 10m
Multiple Airlines
Deal found 29/3£580

Find 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 30 March 2026.

Round-trip from

£528

One-way from

£392

Popular in

December

Cheapest in

August

Average price

£757
26/5-9/6
  • 26/5-9/6
  • 6 total stops
  • 64h 55m total
  • Belfast to Bangkok
Search Deals
6/4
  • 6/4
  • 2 total stops
  • 41h 40m total
  • Belfast to Bangkok
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 30 March 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 26/5

08:50-06:45

3 stops39h 55m

Bangkok Suvarnabhumi

Tue 9/6

20:15-15:15

3 stops25h 00m

£528

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 10/5

22:05-23:50

3 stops43h 45m

Bangkok Suvarnabhumi

Sun 17/5

09:40-12:20

3 stops32h 40m

£571

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Fri 12/6

17:05-18:10

3 stops43h 05m

Bangkok Suvarnabhumi

Sun 5/7

20:15-18:25

3 stops28h 10m

£582

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 25/5

06:10-12:55

2 stops24h 45m

Bangkok Suvarnabhumi

Sat 30/5

02:05-10:05

2 stops38h 00m

£651
Fastest return journey

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 11/5

06:10-13:25

2 stops25h 15m

Bangkok Suvarnabhumi

Mon 18/5

20:30-09:55

2 stops19h 25m

£731
Cheapest one-way

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Mon 6/4

07:05-06:45

2 stops41h 40m

£392

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 7/4

14:30-10:40

3 stops38h 10m

£404
Fastest single journey

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Wed 8/4

06:15-09:15

1 stop21h 00m

£611

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Sorted by cheapest first

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

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

Currently, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok (average of £565). Flying from Belfast Intl Airport to Bangkok in February is currently the most expensive (average of £755). 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?

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 30 March 2026.
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.
KLM
7.8
Good
1,480 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

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
1,480 reviews
KLM
7.8
Good
1,480 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

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
7,836 reviews
KLM
7.8
Good
1,480 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

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 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 £569. 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, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Bangkok (average of £565). Flying from Belfast Intl Airport to Bangkok in February is currently the most expensive (average of £755). 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

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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.
Belfast Intl to Suvarnabhumi flights
Belfast City to Suvarnabhumi flights
Belfast Intl to Phuket City flights
Belfast City to Chiang Mai flights

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 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£569Average£713FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£675Average£749FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Belfast Intl to Bangkok via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Bangkok 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 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.

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

Of course! You can now track prices for flights from Belfast Intl to Bangkok 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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