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Cheap flights from Belfast Intl Airport to Thailand from £239

BFS — BKK
13 Oct — 20 Oct1
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 24/906:10 -
2 stops36h 00m
Fri 9/1014:50 -
2 stops25h 05m
Deal found 9/9£466
Sun 29/1120:55 -
2 stops31h 30m
Sun 20/1219:55 -
2 stops21h 15m
Deal found 13/9£497
Wed 23/908:15 -
2 stops27h 50m
Tue 13/1002:10 -
2 stops35h 30m
Deal found 9/9£501
Thu 24/921:10 -
2 stops31h 10m
Wed 7/1008:55 -
2 stops28h 45m
Deal found 12/9£506
Wed 16/921:35 -
2 stops30h 45m
Wed 23/908:55 -
2 stops28h 45m
Deal found 9/9£565
Sun 25/1020:55 -
2 stops30h 20m
Sun 1/1116:15 -
2 stops36h 10m
Deal found 10/9£571
Wed 28/1010:55 -
2 stops28h 05m
Tue 3/1100:05 -
2 stops41h 00m
Deal found 13/9£574
Sat 10/1006:20 -
2 stops24h 45m
Wed 16/1209:20 -
1 stop18h 05m
Deal found 11/9£585
Sat 10/1006:20 -
2 stops24h 45m
Mon 14/1208:50 -
1 stop18h 25m
Deal found 11/9£608
Fri 9/1008:55 -
2 stops21h 25m
Wed 16/1209:20 -
1 stop18h 35m
Deal found 11/9£611
Fri 23/1006:05 -
2 stops33h 55m
Fri 30/1009:00 -
2 stops29h 40m
Deal found 8/9£729

Find flight deals from Belfast Intl to Thailand

Round-trip from

£466

One-way from

£239

Popular in

December

Cheapest in

September

Average price

£658
24/9-9/10
  • 24/9-9/10
  • 4 total stops
  • 61h 05m total
  • Belfast to Thailand
Search Deals
30/9-31/12
  • 30/9-31/12
  • 3 total stops
  • 29h 55m total
  • Belfast to Thailand
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£277 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 September 2026
Search Deals

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

BelfastChiang Mai

BFS Belfast Intl - CNX Chiang Mai

BFSCNX

Belfast Intl

Wed 30/9

09:55-21:50

3 stops29h 55m

Chiang Mai

Wed 31/12

00:00-18:00

Nonstop0h 00m

£239

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Sat 31/10

23:00-12:30

3 stops54h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£254

BelfastPhuket City

BFS Belfast Intl - HKT Phuket City

BFSHKT

Belfast Intl

Wed 25/11

06:25-12:45

2 stops47h 20m

Phuket City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£324

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Mon 9/11

06:30-22:25

2 stops32h 55m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£354

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Fri 6/11

15:40-01:20

2 stops26h 40m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£359

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Thu 24/9

06:10-00:10

2 stops36h 00m

Bangkok Suvarnabhumi

Fri 9/10

14:50-09:55

2 stops25h 05m

£466

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Thu 24/9

21:10-10:20

2 stops31h 10m

Bangkok Suvarnabhumi

Wed 7/10

08:55-07:40

2 stops28h 45m

£506
Fastest return journey

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Tue 3/11

08:30-07:20

1 stop15h 50m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£515

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Thu 5/11

14:30-05:40

1 stop32h 10m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£540

BelfastBangkok

BFS Belfast Intl - BKK Bangkok Suvarnabhumi

BFSBKK

Belfast Intl

Sat 7/11

15:25-16:00

1 stop17h 35m

Bangkok Suvarnabhumi

Wed 31/12

00:00-18:00

Nonstop0h 00m

£563

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £658). Flying from Belfast Intl Airport to Thailand in December is currently the most expensive (average of £1,968). 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
1,577 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful
KLM
7.8
Good
1,577 reviews
KLM
7.8
Good
1,577 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful
British Airways
6.7
Okay
8,214 reviews
KLM
7.8
Good
1,577 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

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 £658). Flying from Belfast Intl Airport to Thailand in December is currently the most expensive (average of £1,968). 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£650Average£736FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£651Average£827FlexibilityNo cancel feeOn-time75%
Search KLM flights

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

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.

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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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