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Cheap flights from Belfast Intl Airport to Thailand from £454

BFS — BKK
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Thailand

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Thailand

Thu 3/1206:30 -
2 stops43h 10m
Thu 17/1214:20 -
1 stop24h 35m
Deal found 4/11£454
Sat 14/1115:25 -
2 stops36h 45m
Thu 3/1214:50 -
1 stop35h 05m
Deal found 2/11£459
Mon 16/1114:35 -
2 stops26h 05m
Thu 3/1214:50 -
1 stop24h 30m
Deal found 4/11£472
Sun 15/1106:55 -
2 stops26h 40m
Wed 2/1209:20 -
1 stop31h 15m
Deal found 2/11£491
Sat 14/1115:25 -
2 stops37h 20m
Wed 2/1209:20 -
1 stop31h 15m
Deal found 4/11£491
Sat 14/1115:25 -
2 stops36h 45m
Fri 4/1203:00 -
1 stop16h 30m
Deal found 2/11£492
Sun 15/1106:55 -
2 stops26h 40m
Thu 3/1214:50 -
1 stop25h 30m
Deal found 2/11£494
Wed 18/1106:55 -
2 stops35h 15m
Wed 2/1209:20 -
1 stop19h 40m
Deal found 2/11£503
Tue 17/1120:35 -
2 stops26h 05m
Thu 3/1214:50 -
1 stop25h 30m
Deal found 2/11£514
Wed 18/1106:55 -
2 stops35h 15m
Thu 3/1214:50 -
1 stop24h 30m
Deal found 4/11£515

Find flight deals from Belfast Intl to Thailand

Round-trip from

£454

Popular in

December

Cheapest in

September

Average price

£851
3/12-17/12
  • 3/12-17/12
  • 3 total stops
  • 67h 45m total
  • Belfast to Thailand
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£287 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£75 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Belfast Intl Airport to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Thu 3/12

06:30-08:40

2 stops43h 10m

Bangkok Suvarnabhumi

Thu 17/12

14:20-07:55

1 stop24h 35m

£454

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Mon 16/11

09:55-11:25

2 stops42h 30m

Bangkok Suvarnabhumi

Thu 3/12

14:50-08:20

1 stop24h 30m

£489

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Wed 18/11

06:55-01:10

2 stops35h 15m

Bangkok Suvarnabhumi

Wed 2/12

09:20-22:00

1 stop19h 40m

£503
Fastest return journey

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Tue 17/11

20:35-05:40

2 stops26h 05m

Bangkok Suvarnabhumi

Fri 4/12

03:00-12:30

1 stop16h 30m

£544

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Mon 16/11

14:35-23:40

2 stops26h 05m

Bangkok Suvarnabhumi

Wed 2/12

09:20-08:20

1 stop30h 00m

£563

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Sun 29/11

06:15-10:25

2 stops21h 10m

Bangkok Suvarnabhumi

Sun 6/12

09:20-07:35

2 stops29h 15m

£580

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Wed 18/11

22:05-10:25

2 stops29h 20m

Bangkok Suvarnabhumi

Fri 4/12

03:00-12:30

1 stop16h 30m

£595

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Belfast Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

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

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

Currently, September is the cheapest month in which you can book a flight from Belfast Intl Airport to Thailand (average of £661). Flying from Belfast Intl Airport to Thailand in December is currently the most expensive (average of £1,977). 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 Thailand

Get a feel of what it's like to fly with KLM and British Airways from Belfast Intl Airport to Thailand by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,596 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
KLM
7.8
Good
1,596 reviews
KLM
7.8
Good
1,596 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
British Airways
6.7
Okay
8,282 reviews
KLM
7.8
Good
1,596 reviews
Check prices

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

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

    While some choose either Belfast Intl - Phuket City or Belfast Intl - Chiang Mai, Belfast Intl - Bangkok Suvarnabhumi is the most popular route from Belfast Intl Airport to Thailand.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Belfast Intl Airport to Thailand (average of £661). Flying from Belfast Intl Airport to Thailand in December is currently the most expensive (average of £1,977). 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 2 airlines flying from Belfast Intl to Thailand

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£653Average£740FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£654Average£831FlexibilityNo cancel feeOn-time75%
Search KLM flights

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Need flexible booking options for your flight to Thailand 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 Thailand become cheaper?

Yes! Start tracking prices for Belfast Intl to Thailand flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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