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Cheap flights from Belfast Intl Airport to Bangkok from £270

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BKK
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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 31 October 2025.

Round-trip from

£627

One-way from

£270

Popular in

December

Cheapest in

May

Average price

£821
14/12-21/12
  • 14/12-21/12
  • 5 total stops
  • 57h 25m total
  • Belfast to Bangkok
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15/1
  • 15/1
  • 3 total stops
  • 53h 15m total
  • Belfast to Bangkok
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£48 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Wed 5/1106:00BFS - BKK
3 stops32h 05mMultiple Airlines
Wed 26/1105:05BKK - BFS
2 stops36h 00mMultiple Airlines
Deal found 30/10£560
Sun 14/1205:45BFS - BKK
3 stops29h 35mMultiple Airlines
Sun 21/1222:05BKK - BFS
2 stops27h 50mMultiple Airlines
Deal found 30/10£627
Sun 28/1223:05BFS - BKK
2 stops32h 25mMultiple Airlines
Thu 8/115:05BKK - BFS
3 stops28h 45mMultiple Airlines
Deal found 30/10£902
Tue 16/1208:35BFS - BKK
1 stop18h 50mMultiple Airlines
Sat 20/1212:25BKK - BFS
1 stop27h 30mMultiple Airlines
Deal found 29/10£1,121

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 31 October 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

Sun 14/12

05:45-18:20

3 stops29h 35m

Bangkok Suvarnabhumi

Sun 21/12

22:05-18:55

2 stops27h 50m

£627

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Sun 28/12

23:05-14:30

2 stops32h 25m

Bangkok Suvarnabhumi

Thu 8/1

13:35-12:50

2 stops30h 15m

£991

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Tue 16/12

08:35-10:25

1 stop18h 50m

Bangkok Suvarnabhumi

Sat 20/12

12:25-08:55

1 stop27h 30m

£1,121

BelfastBangkok

BFS - BKK

BFSBKK

Belfast Intl

Thu 15/1

08:50-21:05

3 stops53h 15m

£270

Flights are sorted by cheapest return flights first.

Deals found on 29/10

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 £568). Flying from Belfast Intl Airport to Bangkok in July is currently the most expensive (average of £756). 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 31 October 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 22% 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 31 October 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.
KLM
7.7
Good
1,406 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,488 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 £573. Another airline that can offer you cheap pricing is British Airways. Users have found that KLM is 26% 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 £568). Flying from Belfast Intl Airport to Bangkok in July is currently the most expensive (average of £756). 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 City to Chiang Mai flights
Belfast Intl to Phuket City 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£573Average£730FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£637Average£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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